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Error: a non-null String must be provided to a Text widget #37639

Closed
thevishvajeet opened this issue Aug 5, 2019 · 3 comments
Closed

Error: a non-null String must be provided to a Text widget #37639

thevishvajeet opened this issue Aug 5, 2019 · 3 comments
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waiting for customer response The Flutter team cannot make further progress on this issue until the original reporter responds

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@thevishvajeet
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Steps to Reproduce

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Logs

Performing hot restart...
Syncing files to device Redmi Note 5...
Restarted application in 2,357ms.
I/flutter (28602): ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
I/flutter (28602): The following assertion was thrown building QuizPage(dirty, state: _QuizPageState#87270):
I/flutter (28602): A non-null String must be provided to a Text widget.
I/flutter (28602): 'package:flutter/src/widgets/text.dart':
I/flutter (28602): Failed assertion: line 269 pos 10: 'data != null'
I/flutter (28602):
I/flutter (28602): Either the assertion indicates an error in the framework itself, or we should provide substantially
I/flutter (28602): more information in this error message to help you determine and fix the underlying cause.
I/flutter (28602): In either case, please report this assertion by filing a bug on GitHub:
I/flutter (28602): https://github.com/flutter/flutter/issues/new?template=BUG.md
I/flutter (28602):
I/flutter (28602): User-created ancestor of the error-causing widget was:
I/flutter (28602): Padding file:///C:/Users/vishvajeet/AndroidStudioProjects/quizzler-flutter/lib/main.dart:15:18
I/flutter (28602):
I/flutter (28602): When the exception was thrown, this was the stack:
I/flutter (28602): #2 new Text (package:flutter/src/widgets/text.dart:269:10)
I/flutter (28602): #3 _QuizPageState.build (package:quizzler/main.dart:44:22)
I/flutter (28602): #4 StatefulElement.build (package:flutter/src/widgets/framework.dart:4040:27)
I/flutter (28602): #5 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3934:15)
I/flutter (28602): #6 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #7 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #8 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #9 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #10 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #11 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #12 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #13 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #14 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #15 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #16 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #17 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #18 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #19 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #20 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #21 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #22 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #23 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #24 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #25 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #26 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #27 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #28 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #29 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #30 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #31 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #32 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #33 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #34 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #35 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #36 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #37 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #38 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #39 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #40 ParentDataElement.mount (package:flutter/src/widgets/framework.dart:4307:11)
I/flutter (28602): #41 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #42 MultiChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5226:32)
I/flutter (28602): #43 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #44 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #45 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #46 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #47 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #48 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #49 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #50 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #51 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #52 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #53 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #54 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #55 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #56 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #57 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #58 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #59 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #60 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #61 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #62 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #63 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #64 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #65 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #66 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #67 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #68 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #69 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #70 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #71 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #72 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #73 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #74 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #75 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #76 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #77 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #78 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #79 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #80 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #81 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #82 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #83 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #84 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #85 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #86 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #87 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #88 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #89 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #90 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #91 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #92 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #93 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #94 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #95 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #96 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #97 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #98 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #99 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #100 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #101 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #102 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #103 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #104 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #105 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #106 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #107 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #108 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #109 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #110 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #111 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #112 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #113 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #114 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #115 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #116 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #117 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #118 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #119 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #120 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #121 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #122 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #123 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #124 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #125 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #126 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #127 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #128 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #129 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #130 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #131 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #132 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #133 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #134 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #135 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #136 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #137 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #138 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #139 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #140 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #141 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #142 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #143 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #144 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #145 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #146 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #147 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #148 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #149 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #150 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #151 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #152 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #153 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #154 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #155 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #156 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #157 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #158 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #159 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #160 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #161 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #162 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #163 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #164 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #165 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #166 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #167 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #168 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #169 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #170 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #171 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #172 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #173 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #174 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #175 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #176 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #177 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #178 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #179 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #180 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #181 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #182 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #183 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #184 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #185 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #186 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #187 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #188 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #189 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #190 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #191 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #192 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #193 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #194 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #195 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #196 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #197 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #198 MultiChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5226:32)
I/flutter (28602): #199 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #200 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #201 _TheatreElement.mount (package:flutter/src/widgets/overlay.dart:593:16)
I/flutter (28602): #202 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #203 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #204 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #205 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #206 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #207 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #208 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #209 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #210 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #211 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #212 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #213 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #214 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #215 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #216 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #217 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #218 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #219 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #220 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #221 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #222 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #223 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #224 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #225 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #226 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #227 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #228 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #229 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #230 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #231 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #232 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #233 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #234 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #235 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #236 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #237 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #238 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #239 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #240 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #241 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #242 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #243 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #244 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #245 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #246 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #247 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #248 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #249 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #250 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #251 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #252 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #253 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #254 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #255 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #256 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #257 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #258 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #259 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #260 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #261 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #262 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #263 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #264 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #265 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #266 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #267 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #268 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #269 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #270 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #271 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #272 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #273 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #274 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #275 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #276 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #277 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #278 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #279 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #280 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #281 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #282 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #283 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #284 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #285 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #286 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #287 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #288 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #289 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #290 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #291 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #292 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #293 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #294 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #295 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #296 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #297 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #298 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #299 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #300 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #301 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #302 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #303 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #304 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #305 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #306 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #307 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #308 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #309 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #310 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #311 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #312 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #313 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #314 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #315 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #316 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #317 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #318 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #319 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #320 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #321 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #322 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #323 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #324 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #325 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #326 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #327 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #328 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #329 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #330 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #331 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #332 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #333 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #334 SingleChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5120:14)
I/flutter (28602): #335 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #336 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #337 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #338 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #339 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #340 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #341 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #342 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #343 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #344 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #345 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #346 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #347 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #348 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #349 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #350 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #351 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #352 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #353 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #354 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #355 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #356 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #357 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #358 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #359 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #360 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #361 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #362 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #363 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #364 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #365 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #366 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #367 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #368 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #369 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #370 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #371 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #372 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4081:11)
I/flutter (28602): #373 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #374 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #375 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #376 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #377 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #378 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:3917:5)
I/flutter (28602): #379 ComponentElement.mount (package:flutter/src/widgets/framework.dart:3912:5)
I/flutter (28602): #380 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3094:14)
I/flutter (28602): #381 Element.updateChild (package:flutter/src/widgets/framework.dart:2897:12)
I/flutter (28602): #382 RenderObjectToWidgetElement._rebuild (package:flutter/src/widgets/binding.dart:1016:16)
I/flutter (28602): #383 RenderObjectToWidgetElement.mount (package:flutter/src/widgets/binding.dart:987:5)
I/flutter (28602): #384 RenderObjectToWidgetAdapter.attachToRenderTree. (package:flutter/src/widgets/binding.dart:933:17)
I/flutter (28602): #385 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2321:19)
I/flutter (28602): #386 RenderObjectToWidgetAdapter.attachToRenderTree (package:flutter/src/widgets/binding.dart:932:13)
I/flutter (28602): #387 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding&WidgetsBinding.attachRootWidget (package:flutter/src/widgets/binding.dart:813:7)
I/flutter (28602): #388 runApp (package:flutter/src/widgets/binding.dart:863:7)
I/flutter (28602): #389 main (package:quizzler/main.dart:6:16)
I/flutter (28602): #390 _runMainZoned.. (dart:ui/hooks.dart:218:25)
I/flutter (28602): #395 _runMainZoned. (dart:ui/hooks.dart:210:5)
I/flutter (28602): #396 _startIsolate. (dart:isolate-patch/isolate_patch.dart:305:19)
I/flutter (28602): #397 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:172:12)
I/flutter (28602): (elided 6 frames from class _AssertionError and package dart:async)
I/flutter (28602):
I/flutter (28602): ════════════════════════════════════════════════════════════════════════════════════════════════════
I/flutter (28602): ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
I/flutter (28602): The following assertion was thrown building QuizPage(dirty, state: _QuizPageState#87270):
I/flutter (28602): A non-null String must be provided to a Text widget.
I/flutter (28602): 'package:flutter/src/widgets/text.dart':
I/flutter (28602): Failed assertion: line 269 pos 10: 'data != null'
I/flutter (28602):
I/flutter (28602): Either the assertion indicates an error in the framework itself, or we should provide substantially
I/flutter (28602): more information in this error message to help you determine and fix the underlying cause.
I/flutter (28602): In either case, please report this assertion by filing a bug on GitHub:
I/flutter (28602): https://github.com/flutter/flutter/issues/new?template=BUG.md
I/flutter (28602):
I/flutter (28602): User-created ancestor of the error-causing widget was:
I/flutter (28602): Padding file:///C:/Users/vishvajeet/AndroidStudioProjects/quizzler-flutter/lib/main.dart:15:18
I/flutter (28602):
I/flutter (28602): When the exception was thrown, this was the stack:
I/flutter (28602): #2 new Text (package:flutter/src/widgets/text.dart:269:10)
I/flutter (28602): #3 _QuizPageState.build (package:quizzler/main.dart:44:22)
I/flutter (28602): #4 StatefulElement.build (package:flutter/src/widgets/framework.dart:4040:27)
I/flutter (28602): #5 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3934:15)
I/flutter (28602): #6 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #7 StatefulElement.update (package:flutter/src/widgets/framework.dart:4113:5)
I/flutter (28602): #8 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #9 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5127:14)
I/flutter (28602): #10 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #11 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #12 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #13 ProxyElement.update (package:flutter/src/widgets/framework.dart:4247:5)
I/flutter (28602): #14 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #15 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5127:14)
I/flutter (28602): #16 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #17 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #18 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #19 StatelessElement.update (package:flutter/src/widgets/framework.dart:4009:5)
I/flutter (28602): #20 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #21 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #22 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #23 ProxyElement.update (package:flutter/src/widgets/framework.dart:4247:5)
I/flutter (28602): #24 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #25 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #26 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #27 ProxyElement.update (package:flutter/src/widgets/framework.dart:4247:5)
I/flutter (28602): #28 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #29 RenderObjectElement.updateChildren (package:flutter/src/widgets/framework.dart:4845:32)
I/flutter (28602): #30 MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5236:17)
I/flutter (28602): #31 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #32 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #33 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #34 StatefulElement.update (package:flutter/src/widgets/framework.dart:4113:5)
I/flutter (28602): #35 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #36 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #37 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #38 ProxyElement.update (package:flutter/src/widgets/framework.dart:4247:5)
I/flutter (28602): #39 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #40 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #41 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #42 StatefulElement.update (package:flutter/src/widgets/framework.dart:4113:5)
I/flutter (28602): #43 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #44 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5127:14)
I/flutter (28602): #45 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #46 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #47 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #48 StatelessElement.update (package:flutter/src/widgets/framework.dart:4009:5)
I/flutter (28602): #49 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #50 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5127:14)
I/flutter (28602): #51 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #52 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #53 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #54 StatefulElement.update (package:flutter/src/widgets/framework.dart:4113:5)
I/flutter (28602): #55 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #56 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #57 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #58 StatefulElement.update (package:flutter/src/widgets/framework.dart:4113:5)
I/flutter (28602): #59 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #60 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #61 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #62 ProxyElement.update (package:flutter/src/widgets/framework.dart:4247:5)
I/flutter (28602): #63 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #64 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #65 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #66 ProxyElement.update (package:flutter/src/widgets/framework.dart:4247:5)
I/flutter (28602): #67 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #68 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #69 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #70 StatefulElement.update (package:flutter/src/widgets/framework.dart:4113:5)
I/flutter (28602): #71 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #72 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5127:14)
I/flutter (28602): #73 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #74 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #75 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #76 StatelessElement.update (package:flutter/src/widgets/framework.dart:4009:5)
I/flutter (28602): #77 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #78 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5127:14)
I/flutter (28602): #79 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #80 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5127:14)
I/flutter (28602): #81 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #82 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5127:14)
I/flutter (28602): #83 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #84 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5127:14)
I/flutter (28602): #85 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #86 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #87 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #88 StatefulElement.update (package:flutter/src/widgets/framework.dart:4113:5)
I/flutter (28602): #89 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #90 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #91 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #92 StatelessElement.update (package:flutter/src/widgets/framework.dart:4009:5)
I/flutter (28602): #93 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #94 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #95 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #96 StatefulElement.update (package:flutter/src/widgets/framework.dart:4113:5)
I/flutter (28602): #97 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #98 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5127:14)
I/flutter (28602): #99 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #100 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #101 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #102 ProxyElement.update (package:flutter/src/widgets/framework.dart:4247:5)
I/flutter (28602): #103 _InheritedNotifierElement.update (package:flutter/src/widgets/inherited_notifier.dart:94:11)
I/flutter (28602): #104 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #105 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5127:14)
I/flutter (28602): #106 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #107 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #108 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #109 StatefulElement.update (package:flutter/src/widgets/framework.dart:4113:5)
I/flutter (28602): #110 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #111 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #112 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #113 StatelessElement.update (package:flutter/src/widgets/framework.dart:4009:5)
I/flutter (28602): #114 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #115 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:5127:14)
I/flutter (28602): #116 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #117 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #118 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #119 ProxyElement.update (package:flutter/src/widgets/framework.dart:4247:5)
I/flutter (28602): #120 Element.updateChild (package:flutter/src/widgets/framework.dart:2886:15)
I/flutter (28602): #121 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3954:16)
I/flutter (28602): #122 Element.rebuild (package:flutter/src/widgets/framework.dart:3731:5)
I/flutter (28602): #123 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2341:33)
I/flutter (28602): #124 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding&WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:778:20)
I/flutter (28602): #125 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:285:5)
I/flutter (28602): #126 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1033:15)
I/flutter (28602): #127 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:975:9)
I/flutter (28602): #128 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding.scheduleWarmUpFrame. (package:flutter/src/scheduler/binding.dart:784:7)
I/flutter (28602): #130 _Timer._runTimers (dart:isolate-patch/timer_impl.dart:382:19)
I/flutter (28602): #131 _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:416:5)
I/flutter (28602): #132 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:172:12)
I/flutter (28602): (elided 3 frames from class _AssertionError and package dart:async-patch)
I/flutter (28602):
I/flutter (28602): ════════════════════════════════════════════════════════════════════════════════════════════════════

@ketanm
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ketanm commented Aug 6, 2019

Hi @thevishvajeet,

In order for anyone to help you, please file the reports properly. e.g. 1) Share actual code, 2) link relevant stack trace and 3) report what you did to address the recommendation.

Stack trace already shows that you are entering null in the text widget (data), share actual code block and situation what is going on and why you think it should work based on your actual data.

I/flutter (28602): The following assertion was thrown building QuizPage(dirty, state: _QuizPageState#87270):
I/flutter (28602): A non-null String must be provided to a Text widget.
I/flutter (28602): 'package:flutter/src/widgets/text.dart':
I/flutter (28602): Failed assertion: line 269 pos 10: 'data != null'
I/flutter (28602):

@HansMuller HansMuller changed the title error Error: a non-null String must be provided to a Text widget Aug 6, 2019
@Piinks Piinks added the waiting for customer response The Flutter team cannot make further progress on this issue until the original reporter responds label Aug 12, 2019
@iapicca
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iapicca commented Nov 11, 2019

Without additional information, we are unfortunately not sure how to resolve this issue.
We are therefore reluctantly going to close this bug for now.
Please don't hesitate to comment on the bug if you have any more information for us; we will reopen it right away!

Could everyone who still has this problem please file a new issue with the exact descriptions what happens, logs and the output of ' flutter doctor -v' please.
All system setups can be slightly different so its always better to open new issues and reference related issues.

@iapicca iapicca closed this as completed Nov 11, 2019
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This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.

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