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sakibovi123 / wrestling_news_app

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Faiz #2

Closed sakibovi123 closed 1 year ago

sakibovi123 commented 1 year ago

Fix the issue in pageview. I am trying to fetch data from the api. But when I try to fetch the pageview broke down and throws an exception. Please fix it asap

Exception => The following _CastError was thrown during paint(): Null check operator used on a null value

sakibovi123 commented 1 year ago

======== Exception caught by rendering library ===================================================== The following assertion was thrown during paint(): RenderBox was not laid out: RenderRepaintBoundary#f3523 relayoutBoundary=up1 NEEDS-PAINT 'package:flutter/src/rendering/box.dart': Failed assertion: line 2001 pos 12: 'hasSize'

Either the assertion indicates an error in the framework itself, or we should provide substantially more information in this error message to help you determine and fix the underlying cause. In either case, please report this assertion by filing a bug on GitHub: https://github.com/flutter/flutter/issues/new?template=2_bug.md

The relevant error-causing widget was: Scaffold Scaffold:file:///home/mrsakib/Desktop/WrestlingNewsApp/faiz_part/wrestling_news_app/lib/Views/Pages/show_news.dart:38:14 When the exception was thrown, this was the stack:

2 RenderBox.size (package:flutter/src/rendering/box.dart:2001:12)

3 RenderBox.paintBounds (package:flutter/src/rendering/box.dart:2666:41)

4 PaintingContext._repaintCompositedChild (package:flutter/src/rendering/object.dart:154:56)

5 PaintingContext.repaintCompositedChild (package:flutter/src/rendering/object.dart:98:5)

6 PaintingContext._compositeChild (package:flutter/src/rendering/object.dart:250:7)

7 PaintingContext.paintChild (package:flutter/src/rendering/object.dart:231:7)

8 RenderBoxContainerDefaultsMixin.defaultPaint (package:flutter/src/rendering/box.dart:2900:15)

9 RenderCustomMultiChildLayoutBox.paint (package:flutter/src/rendering/custom_layout.dart:415:5)

10 RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2796:7)

11 PaintingContext.paintChild (package:flutter/src/rendering/object.dart:239:13)

12 RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:144:15)

13 _RenderInkFeatures.paint (package:flutter/src/material/material.dart:609:11)

14 RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2796:7)

15 PaintingContext.paintChild (package:flutter/src/rendering/object.dart:239:13)

16 RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:144:15)

17 RenderPhysicalModel.paint. (package:flutter/src/rendering/proxy_box.dart:2098:15)

18 PaintingContext.pushClipRRect (package:flutter/src/rendering/object.dart:550:14)

19 RenderPhysicalModel.paint (package:flutter/src/rendering/proxy_box.dart:2085:21)

20 RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2796:7)

21 PaintingContext.paintChild (package:flutter/src/rendering/object.dart:239:13)

22 RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:144:15)

23 RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:2796:7)

24 PaintingContext._repaintCompositedChild (package:flutter/src/rendering/object.dart:155:11)

25 PaintingContext.repaintCompositedChild (package:flutter/src/rendering/object.dart:98:5)

26 PipelineOwner.flushPaint (package:flutter/src/rendering/object.dart:1116:31)

27 RendererBinding.drawFrame (package:flutter/src/rendering/binding.dart:515:19)

28 WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:884:13)

29 RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:378:5)

30 SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1175:15)

31 SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1104:9)

32 SchedulerBinding.scheduleWarmUpFrame. (package:flutter/src/scheduler/binding.dart:881:7)

(elided 6 frames from class _AssertionError, class _RawReceivePortImpl, class _Timer, and dart:async-patch) The following RenderObject was being processed when the exception was fired: RenderCustomMultiChildLayoutBox#c7e1e ... needs compositing ... parentData: (can use size) ... constraints: BoxConstraints(w=411.4, h=683.4) ... size: Size(411.4, 683.4) RenderObject: RenderCustomMultiChildLayoutBox#c7e1e needs compositing parentData: (can use size) constraints: BoxConstraints(w=411.4, h=683.4) size: Size(411.4, 683.4) ... child 1: RenderRepaintBoundary#f3523 relayoutBoundary=up1 NEEDS-PAINT ... needs compositing ... parentData: offset=Offset(0.0, 0.0); id=_ScaffoldSlot.body (can use size) ... constraints: BoxConstraints(0.0<=w<=411.4, 0.0<=h<=683.4) ... layer: OffsetLayer#9bdd7 DETACHED ... handles: 1 ... offset: Offset(0.0, 0.0) ... size: MISSING ... metrics: 0.0% useful (2 bad vs 0 good) ... diagnosis: insufficient data to draw conclusion (less than five repaints) ... child: RenderCustomPaint#407ac relayoutBoundary=up2 NEEDS-PAINT ... needs compositing ... parentData: (can use size) ... constraints: BoxConstraints(0.0<=w<=411.4, 0.0<=h<=683.4) ... size: MISSING ... painter: null ... foregroundPainter: _GlowingOverscrollIndicatorPainter(_GlowController(color: Color(0xff673ab7), axis: vertical), _GlowController(color: Color(0xff673ab7), axis: vertical)) ... child: RenderRepaintBoundary#81172 relayoutBoundary=up3 NEEDS-PAINT ... needs compositing ... parentData: (can use size) ... constraints: BoxConstraints(0.0<=w<=411.4, 0.0<=h<=683.4) ... size: MISSING ... usefulness ratio: no metrics collected yet (never painted) ... child: _RenderScrollSemantics#6fb14 relayoutBoundary=up4 NEEDS-PAINT ... needs compositing ... parentData: (can use size) ... constraints: BoxConstraints(0.0<=w<=411.4, 0.0<=h<=683.4) ... semantic boundary ... size: MISSING ... child 2: RenderStack#635cf relayoutBoundary=up1 NEEDS-LAYOUT NEEDS-PAINT ... parentData: offset=Offset(395.4, 667.4); id=_ScaffoldSlot.floatingActionButton (can use size) ... constraints: BoxConstraints(0.0<=w<=411.4, 0.0<=h<=683.4) ... size: Size(0.0, 0.0) ... alignment: Alignment.centerRight ... textDirection: ltr ... fit: loose ... child 1: RenderTransform#752b5 relayoutBoundary=up2 NEEDS-LAYOUT NEEDS-PAINT ... parentData: not positioned; offset=Offset(0.0, 0.0) (can use size) ... constraints: BoxConstraints(0.0<=w<=411.4, 0.0<=h<=683.4) ... size: Size(0.0, 0.0) ... transform matrix: [0] 0.0,0.0,0.0,0.0 [1] 0.0,0.0,0.0,0.0 [2] 0.0,0.0,1.0,0.0 [3] 0.0,0.0,0.0,1.0 ... origin: null ... alignment: Alignment.center ... textDirection: ltr ... transformHitTests: true ... child: RenderTransform#b3fd0 relayoutBoundary=up3 NEEDS-LAYOUT NEEDS-PAINT ... parentData: (can use size) ... constraints: BoxConstraints(0.0<=w<=411.4, 0.0<=h<=683.4) ... size: Size(0.0, 0.0) ... transform matrix: [0] 0.7,0.7,0.0,0.0 [1] -0.7,0.7,0.0,0.0 [2] 0.0,0.0,1.0,0.0 [3] 0.0,0.0,0.0,1.0 ... origin: null ... alignment: Alignment.center ... textDirection: ltr ... transformHitTests: true

@faiz