The following NoSuchMethodError was thrown during performLayout()

[farisabbasi]

Using Exactly Your Code I Got This Error

I/flutter (13726): ══╡ EXCEPTION CAUGHT BY RENDERING LIBRARY ╞═════════════════════════════════════════════════════════
I/flutter (13726): The following NoSuchMethodError was thrown during performLayout():
I/flutter (13726): The method '[]' was called on null.
I/flutter (13726): Receiver: null
I/flutter (13726): Tried calling:
I/flutter (13726):
I/flutter (13726): When the exception was thrown, this was the stack:
I/flutter (13726): #0 Object.noSuchMethod (dart:core/runtime/libobject_patch.dart:48:5)
I/flutter (13726): #1 _MyHomePageState.build.. (file:///C:/Projects/flutter/woo_commerce/lib/main.dart:78:55)
I/flutter (13726): #2 SliverChildBuilderDelegate.build (package:flutter/src/widgets/sliver.dart:258:20)
I/flutter (13726): #3 SliverMultiBoxAdaptorElement._build. (package:flutter/src/widgets/sliver.dart:783:67)
I/flutter (13726): #4 _HashMap.putIfAbsent (dart:collection/runtime/libcollection_patch.dart:143:29)
I/flutter (13726): #5 SliverMultiBoxAdaptorElement._build (package:flutter/src/widgets/sliver.dart:783:26)
I/flutter (13726): #6 SliverMultiBoxAdaptorElement.createChild. (package:flutter/src/widgets/sliver.dart:796:55)
I/flutter (13726): #7 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2235:19)
I/flutter (13726): #8 SliverMultiBoxAdaptorElement.createChild (package:flutter/src/widgets/sliver.dart:789:11)
I/flutter (13726): #9 RenderSliverMultiBoxAdaptor._createOrObtainChild. (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:254:23)
I/flutter (13726): #10 RenderObject.invokeLayoutCallback. (package:flutter/src/rendering/object.dart:1727:58)
I/flutter (13726): #11 PipelineOwner._enableMutationsToDirtySubtrees (package:flutter/src/rendering/object.dart:796:15)
I/flutter (13726): #12 RenderObject.invokeLayoutCallback (package:flutter/src/rendering/object.dart:1727:13)
I/flutter (13726): #13 RenderSliverMultiBoxAdaptor._createOrObtainChild (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:243:5)
I/flutter (13726): #14 RenderSliverMultiBoxAdaptor.addInitialChild (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:321:5)
I/flutter (13726): #15 RenderSliverList.performLayout (package:flutter/src/rendering/sliver_list.dart:78:12)
I/flutter (13726): #16 RenderObject.layout (package:flutter/src/rendering/object.dart:1631:7)
I/flutter (13726): #17 RenderSliverPadding.performLayout (package:flutter/src/rendering/sliver_padding.dart:182:11)
I/flutter (13726): #18 RenderObject.layout (package:flutter/src/rendering/object.dart:1631:7)
I/flutter (13726): #19 RenderViewportBase.layoutChildSequence (package:flutter/src/rendering/viewport.dart:405:13)
I/flutter (13726): #20 RenderViewport._attemptLayout (package:flutter/src/rendering/viewport.dart:1320:12)
I/flutter (13726): #21 RenderViewport.performLayout (package:flutter/src/rendering/viewport.dart:1238:20)
I/flutter (13726): #22 RenderObject.layout (package:flutter/src/rendering/object.dart:1631:7)
I/flutter (13726): #23 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:108:13)
I/flutter (13726): #24 RenderObject.layout (package:flutter/src/rendering/object.dart:1631:7)
I/flutter (13726): #25 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:108:13)
I/flutter (13726): #26 RenderObject.layout (package:flutter/src/rendering/object.dart:1631:7)
I/flutter (13726): #27 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:108:13)
I/flutter (13726): #28 RenderObject.layout (package:flutter/src/rendering/object.dart:1631:7)
I/flutter (13726): #29 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:108:13)
I/flutter (13726): #30 RenderObject.layout (package:flutter/src/rendering/object.dart:1631:7)
I/flutter (13726): #31 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:108:13)
I/flutter (13726): #32 RenderObject.layout (package:flutter/src/rendering/object.dart:1631:7)
I/flutter (13726): #33 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:108:13)
I/flutter (13726): #34 RenderObject.layout (package:flutter/src/rendering/object.dart:1631:7)
I/flutter (13726): #35 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:108:13)
I/flutter (13726): #36 RenderObject.layout (package:flutter/src/rendering/object.dart:1631:7)
I/flutter (13726): #37 _RenderProxyBox&RenderBox&RenderObjectWithChildMixin&RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:108:13)
I/flutter (13726): #38 RenderObject.layout (package:flutter/src/rendering/object.dart:1631:7)
I/flutter (13726): #39 MultiChildLayoutDelegate.layoutChild (package:flutter/src/rendering/custom_layout.dart:141:11)
I/flutter (13726): #40 _ScaffoldLayout.performLayout (package:flutter/src/material/scaffold.dart:338:7)
I/flutter (13726): #41 MultiChildLayoutDelegate._callPerformLayout (package:flutter/src/rendering/custom_layout.dart:211:7)
I/flutter (13726): #42 RenderCustomMultiChildLayoutBox.performLayout (package:flutter/src/rendering/custom_layout.dart:355:14)
I/flutter (13726): #43 RenderObject._layoutWithoutResize (package:flutter/src/rendering/object.dart:1506:7)
I/flutter (13726): #44 PipelineOwner.flushLayout (package:flutter/src/rendering/object.dart:765:18)
I/flutter (13726): #45 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding.drawFrame (package:flutter/src/rendering/binding.dart:270:19)
I/flutter (13726): #46 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding&WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:654:13)
I/flutter (13726): #47 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding&PaintingBinding&SemanticsBinding&RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:208:5)
I/flutter (13726): #48 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:990:15)
I/flutter (13726): #49 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:930:9)
I/flutter (13726): #50 _WidgetsFlutterBinding&BindingBase&GestureBinding&ServicesBinding&SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:842:5)
I/flutter (13726): #51 _invoke (dart:ui/hooks.dart:128:13)
I/flutter (13726): #52 _drawFrame (dart:ui/hooks.dart:117:3)
I/flutter (13726):
I/flutter (13726): The following RenderObject was being processed when the exception was fired:
I/flutter (13726): RenderSliverList#8c35f relayoutBoundary=up2 NEEDS-LAYOUT NEEDS-PAINT
I/flutter (13726): creator: SliverList ← MediaQuery ← SliverPadding ← Viewport ← _ScrollableScope ←
I/flutter (13726): IgnorePointer-[GlobalKey#4e1f0] ← Semantics ← Listener ← _GestureSemantics ←
I/flutter (13726): RawGestureDetector-[LabeledGlobalKey#99210] ←
I/flutter (13726): _ScrollSemantics-[GlobalKey#e1260] ← RepaintBoundary ← ⋯
I/flutter (13726): parentData: paintOffset=Offset(0.0, 0.0) (can use size)
I/flutter (13726): constraints: SliverConstraints(AxisDirection.down, GrowthDirection.forward, ScrollDirection.idle,
I/flutter (13726): scrollOffset: 0.0, remainingPaintExtent: 603.4, crossAxisExtent: 411.4, crossAxisDirection:
I/flutter (13726): AxisDirection.right, viewportMainAxisExtent: 603.4, remainingCacheExtent: 853.4 cacheOrigin: 0.0 )
I/flutter (13726): geometry: null
I/flutter (13726): no children current live
I/flutter (13726): This RenderObject has no descendants.
I/flutter (13726): ════════════════════════════════════════════════════════════════════════════════════════════════════
I/flutter (13726): Another exception was thrown: NoSuchMethodError: The getter 'scrollOffsetCorrection' was called on null.
I/flutter (13726): Another exception was thrown: NoSuchMethodError: The method 'debugAssertIsValid' was called on null.
I/flutter (13726): Another exception was thrown: NoSuchMethodError: The getter 'visible' was called on null.

[samarthagarwal]

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