ERROR OCCURED

I/flutter ( 3764): ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
I/flutter ( 3764): The following assertion was thrown building Hero(tag: qrcode, dirty, state: _HeroState#86999):
I/flutter ( 3764): A Hero widget cannot be the descendant of another Hero widget.
I/flutter ( 3764): 'package:flutter/src/widgets/heroes.dart':
I/flutter ( 3764): Failed assertion: line 375 pos 7: 'context.findAncestorWidgetOfExactType() == null'
I/flutter ( 3764):
I/flutter ( 3764): Either the assertion indicates an error in the framework itself, or we should provide substantially
I/flutter ( 3764): more information in this error message to help you determine and fix the underlying cause.
I/flutter ( 3764): In either case, please report this assertion by filing a bug on GitHub:
I/flutter ( 3764): https://github.com/flutter/flutter/issues/new?template=BUG.md
I/flutter ( 3764):
I/flutter ( 3764): The relevant error-causing widget was:
I/flutter ( 3764): Hero file:///F:/apps/flutter/AnimationApps/Ticket_Animation/lib/common/ticket_card.dart:77:23
I/flutter ( 3764):
I/flutter ( 3764): When the exception was thrown, this was the stack:
I/flutter ( 3764): #2 _HeroState.build (package:flutter/src/widgets/heroes.dart:375:7)
I/flutter ( 3764): #3 StatefulElement.build (package:flutter/src/widgets/framework.dart:4619:28)
I/flutter ( 3764): #4 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4502:15)
I/flutter ( 3764): #5 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:4675:11)
I/flutter ( 3764): #6 Element.rebuild (package:flutter/src/widgets/framework.dart:4218:5)
I/flutter ( 3764): #7 ComponentElement._firstBuild (package:flutter/src/widgets/framework.dart:4481:5)
I/flutter ( 3764): #8 StatefulElement._firstBuild (package:flutter/src/widgets/framework.dart:4666:11)
I/flutter ( 3764): #9 ComponentElement.mount (package:flutter/src/widgets/framework.dart:4476:5)
I/flutter ( 3764): #10 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3446:14)
I/flutter ( 3764): #11 MultiChildRenderObjectElement.mount (package:flutter/src/widgets/framework.dart:5947:32)
I/flutter ( 3764): ... Normal element mounting (211 frames)
I/flutter ( 3764): #222 Element.inflateWidget (package:flutter/src/widgets/framework.dart:3446:14)
I/flutter ( 3764): #223 Element.updateChild (package:flutter/src/widgets/framework.dart:3214:18)
I/flutter ( 3764): #224 SliverMultiBoxAdaptorElement.updateChild (package:flutter/src/widgets/sliver.dart:1162:36)
I/flutter ( 3764): #225 SliverMultiBoxAdaptorElement.createChild. (package:flutter/src/widgets/sliver.dart:1147:20)
I/flutter ( 3764): #226 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2607:19)
I/flutter ( 3764): #227 SliverMultiBoxAdaptorElement.createChild (package:flutter/src/widgets/sliver.dart:1140:11)
I/flutter ( 3764): #228 RenderSliverMultiBoxAdaptor._createOrObtainChild. (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:354:23)
I/flutter ( 3764): #229 RenderObject.invokeLayoutCallback. (package:flutter/src/rendering/object.dart:1866:58)
I/flutter ( 3764): #230 PipelineOwner._enableMutationsToDirtySubtrees (package:flutter/src/rendering/object.dart:918:15)
I/flutter ( 3764): #231 RenderObject.invokeLayoutCallback (package:flutter/src/rendering/object.dart:1866:13)
I/flutter ( 3764): #232 RenderSliverMultiBoxAdaptor._createOrObtainChild (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:343:5)
I/flutter ( 3764): #233 RenderSliverMultiBoxAdaptor.addInitialChild (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:427:5)
I/flutter ( 3764): #234 RenderSliverList.performLayout (package:flutter/src/rendering/sliver_list.dart:79:12)
I/flutter ( 3764): #235 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #236 RenderSliverEdgeInsetsPadding.performLayout (package:flutter/src/rendering/sliver_padding.dart:135:11)
I/flutter ( 3764): #237 RenderSliverPadding.performLayout (package:flutter/src/rendering/sliver_padding.dart:375:11)
I/flutter ( 3764): #238 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #239 RenderViewportBase.layoutChildSequence (package:flutter/src/rendering/viewport.dart:452:13)
I/flutter ( 3764): #240 RenderShrinkWrappingViewport._attemptLayout (package:flutter/src/rendering/viewport.dart:1783:12)
I/flutter ( 3764): #241 RenderShrinkWrappingViewport.performLayout (package:flutter/src/rendering/viewport.dart:1741:20)
I/flutter ( 3764): #242 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #243 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #244 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #245 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #246 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #247 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #248 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #249 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #250 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #251 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #252 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #253 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #254 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #255 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #256 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #257 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #258 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #259 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #260 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #261 RenderFlex.performLayout (package:flutter/src/rendering/flex.dart:746:15)
I/flutter ( 3764): #262 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #263 _RenderSingleChildViewport.performLayout (package:flutter/src/widgets/single_child_scroll_view.dart:512:13)
I/flutter ( 3764): #264 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #265 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #266 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #267 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #268 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #269 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #270 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #271 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #272 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #273 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #274 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #275 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #276 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #277 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #278 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #279 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #280 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #281 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #282 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #283 MultiChildLayoutDelegate.layoutChild (package:flutter/src/rendering/custom_layout.dart:171:11)
I/flutter ( 3764): #284 _ScaffoldLayout.performLayout (package:flutter/src/material/scaffold.dart:484:7)
I/flutter ( 3764): #285 MultiChildLayoutDelegate._callPerformLayout (package:flutter/src/rendering/custom_layout.dart:240:7)
I/flutter ( 3764): #286 RenderCustomMultiChildLayoutBox.performLayout (package:flutter/src/rendering/custom_layout.dart:399:14)
I/flutter ( 3764): #287 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #288 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #289 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #290 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #291 _RenderCustomClip.performLayout (package:flutter/src/rendering/proxy_box.dart:1248:11)
I/flutter ( 3764): #292 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #293 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #294 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #295 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #296 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #297 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #298 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #299 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #300 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #301 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #302 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #303 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #304 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #305 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #306 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #307 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #308 RenderOffstage.performLayout (package:flutter/src/rendering/proxy_box.dart:3225:13)
I/flutter ( 3764): #309 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #310 _RenderTheatre.performLayout (package:flutter/src/widgets/overlay.dart:700:15)
I/flutter ( 3764): #311 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #312 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #313 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #314 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #315 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #316 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #317 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #318 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #319 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #320 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:111:13)
I/flutter ( 3764): #321 RenderObject.layout (package:flutter/src/rendering/object.dart:1767:7)
I/flutter ( 3764): #322 RenderView.performLayout (package:flutter/src/rendering/view.dart:167:13)
I/flutter ( 3764): #323 RenderObject._layoutWithoutResize (package:flutter/src/rendering/object.dart:1630:7)
I/flutter ( 3764): #324 PipelineOwner.flushLayout (package:flutter/src/rendering/object.dart:887:18)
I/flutter ( 3764): #325 RendererBinding.drawFrame (package:flutter/src/rendering/binding.dart:402:19)
I/flutter ( 3764): #326 WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:884:13)
I/flutter ( 3764): #327 RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:284:5)
I/flutter ( 3764): #328 SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1113:15)
I/flutter ( 3764): #329 SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1052:9)
I/flutter ( 3764): #330 SchedulerBinding.scheduleWarmUpFrame. (package:flutter/src/scheduler/binding.dart:861:7)
I/flutter ( 3764): (elided 13 frames from class _AssertionError, class _RawReceivePortImpl, class _Timer, dart:async, and dart:async-patch)
I/flutter ( 3764):
I/flutter ( 3764): ════════════════════════════════════════════════════════════════════════════════════════════════════
I/flutter ( 3764): Another exception was thrown: A RenderFlex overflowed by 99671 pixels on the right.
D/InputMethodManager( 3764): prepareNavigationBarInfo() DecorView@b25b6ab[MainActivity]
D/InputMethodManager( 3764): getNavigationBarColor() -855310
V/InputMethodManager( 3764): Starting input: tba=com.example.Ticket_Animation ic=null mNaviBarColor -855310 mIsGetNaviBarColorSuccess true , NavVisible : true , NavTrans : false
D/InputMethodManager( 3764): startInputInner - Id : 0
I/InputMethodManager( 3764): startInputInner - mService.startInputOrWindowGainedFocus
D/InputTransport( 3764): Input channel destroyed: 'ClientS', fd=97
D/ViewRootImpl@b871287MainActivity: stopped(true) old=false
D/SurfaceView( 3764): windowStopped(true) false io.flutter.embedding.android.FlutterSurfaceView{d002d9 V.E...... ........ 0,0-720,1454} of ViewRootImpl@b871287[MainActivity]
D/SurfaceView( 3764): surfaceDestroyed callback.size 1 #1 io.flutter.embedding.android.FlutterSurfaceView{d002d9 V.E...... ........ 0,0-720,1454}
D/SurfaceView( 3764): remove() io.flutter.embedding.android.FlutterSurfaceView{d002d9 V.E...... ........ 0,0-720,1454} Surface(name=SurfaceView - com.example.Ticket_Animation/com.example.Ticket_Animation.MainActivity@d002d9@5)/@0x152c702
D/ViewRootImpl@b871287MainActivity: MSG_WINDOW_FOCUS_CHANGED 0 1
D/InputMethodManager( 3764): prepareNavigationBarInfo() DecorView@b25b6ab[MainActivity]
D/InputMethodManager( 3764): getNavigationBarColor() -855310
E/ViewRootImpl@b871287MainActivity: Surface is not valid.

flutter doctor output