Null check operator used on a null value error on refresh

[Adithyan2295]

While hitting refresh the following error is shown.

══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
The following _CastError was thrown building LayoutBuilder:
Null check operator used on a null value

The relevant error-causing widget was:
LayoutBuilder
LayoutBuilder:file:/flutter/.pub-cache/hosted/pub.dartlang.org/syncfusion_flutter_charts-20.2.43/lib/src/chart/base/cha
rt_base.dart:2360:12

When the exception was thrown, this was the stack:
#0 ChartSeriesPanel._needAxisAnimation (package:syncfusion_flutter_charts/src/chart/base/series_base.dart:103:66)
#1 ChartSeriesPanel._populateDataPoints (package:syncfusion_flutter_charts/src/chart/base/series_base.dart:244:23)
#2 ChartSeriesPanel.processData (package:syncfusion_flutter_charts/src/chart/base/series_base.dart:90:7)
#3 ContainerArea._calculateBounds (package:syncfusion_flutter_charts/src/chart/base/chart_base.dart:2564:34)
#4 ContainerArea._initializeChart (package:syncfusion_flutter_charts/src/chart/base/chart_base.dart:2548:5)
#5 ContainerArea.build. (package:syncfusion_flutter_charts/src/chart/base/chart_base.dart:2539:34)
#6 _LayoutBuilderElement._layout.layoutCallback (package:flutter/src/widgets/layout_builder.dart:119:77)
#7 BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2597:19)
#8 _LayoutBuilderElement._layout (package:flutter/src/widgets/layout_builder.dart:153:12)
#9 RenderObject.invokeLayoutCallback. (package:flutter/src/rendering/object.dart:2025:59)
#10 PipelineOwner._enableMutationsToDirtySubtrees (package:flutter/src/rendering/object.dart:918:15)
#11 RenderObject.invokeLayoutCallback (package:flutter/src/rendering/object.dart:2025:14)
#12 RenderConstrainedLayoutBuilder.rebuildIfNecessary (package:flutter/src/widgets/layout_builder.dart:227:7)
#13 _RenderLayoutBuilder.performLayout (package:flutter/src/widgets/layout_builder.dart:316:5)
#14 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#15 RenderConstrainedBox.performLayout (package:flutter/src/rendering/proxy_box.dart:277:14)
#16 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#17 _RenderLayoutBuilder.performLayout (package:flutter/src/widgets/layout_builder.dart:318:14)
#18 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#19 ChildLayoutHelper.layoutChild (package:flutter/src/rendering/layout_helper.dart:56:11)
#20 RenderFlex._computeSizes (package:flutter/src/rendering/flex.dart:896:45)
#21 RenderFlex.performLayout (package:flutter/src/rendering/flex.dart:931:32)
#22 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#23 RenderPadding.performLayout (package:flutter/src/rendering/shifted_box.dart:233:12)
#24 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#25 RenderPadding.performLayout (package:flutter/src/rendering/shifted_box.dart:233:12)
#26 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#27 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#28 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#29 _ChartContainerBox.performLayout (package:syncfusion_flutter_charts/src/common/common.dart:34:12)
#30 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#31 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#32 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#33 ChildLayoutHelper.layoutChild (package:flutter/src/rendering/layout_helper.dart:56:11)
#34 RenderFlex._computeSizes (package:flutter/src/rendering/flex.dart:829:43)
#35 RenderFlex.performLayout (package:flutter/src/rendering/flex.dart:931:32)
#36 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#37 ChildLayoutHelper.layoutChild (package:flutter/src/rendering/layout_helper.dart:56:11)
#38 RenderFlex._computeSizes (package:flutter/src/rendering/flex.dart:829:43)
#39 RenderFlex.performLayout (package:flutter/src/rendering/flex.dart:931:32)
#40 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#41 RenderPadding.performLayout (package:flutter/src/rendering/shifted_box.dart:233:12)
#42 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#43 ChildLayoutHelper.layoutChild (package:flutter/src/rendering/layout_helper.dart:56:11)
#44 RenderStack._computeSize (package:flutter/src/rendering/stack.dart:552:43)
#45 RenderStack.performLayout (package:flutter/src/rendering/stack.dart:579:12)
#46 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#47 _RenderLayoutBuilder.performLayout (package:flutter/src/widgets/layout_builder.dart:318:14)
#48 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#49 MultiChildLayoutDelegate.layoutChild (package:flutter/src/rendering/custom_layout.dart:171:12)
#50 _ScaffoldLayout.performLayout (package:flutter/src/material/scaffold.dart:1003:7)
#51 MultiChildLayoutDelegate._callPerformLayout (package:flutter/src/rendering/custom_layout.dart:240:7)
#52 RenderCustomMultiChildLayoutBox.performLayout (package:flutter/src/rendering/custom_layout.dart:403:14)
#53 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#54 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#55 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#56 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#57 _RenderCustomClip.performLayout (package:flutter/src/rendering/proxy_box.dart:1376:11)
#58 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#59 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#60 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#61 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#62 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#63 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#64 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#65 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#66 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#67 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#68 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#69 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#70 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#71 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#72 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#73 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#74 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#75 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#76 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#77 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#78 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#79 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#80 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#81 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#82 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#83 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#84 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#85 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#86 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#87 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#88 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#89 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#90 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#91 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#92 RenderOffstage.performLayout (package:flutter/src/rendering/proxy_box.dart:3462:13)
#93 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#94 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#95 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#96 _RenderTheatre.performLayout (package:flutter/src/widgets/overlay.dart:749:15)
#97 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#98 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#99 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#100 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#101 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#102 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#103 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#104 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#105 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#106 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#107 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#108 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#109 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#110 RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:116:14)
#111 RenderObject.layout (package:flutter/src/rendering/object.dart:1915:7)
#112 RenderView.performLayout (package:flutter/src/rendering/view.dart:165:14)
#113 RenderObject._layoutWithoutResize (package:flutter/src/rendering/object.dart:1757:7)
#114 PipelineOwner.flushLayout (package:flutter/src/rendering/object.dart:887:18)
#115 RendererBinding.drawFrame (package:flutter/src/rendering/binding.dart:504:19)
#116 WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:892:13)
#117 RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:370:5)
#118 SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1146:15)
#119 SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1083:9)
#120 SchedulerBinding.scheduleWarmUpFrame. (package:flutter/src/scheduler/binding.dart:864:7)
(elided 4 frames from class _RawReceivePortImpl, class _Timer, and dart:async-patch)

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[SriramKiranSenthilkumar]

Hi @Adithyan2295,

We tried to replicate your issue in a simple sample, but the reported issue is not reproduced at our end. We have shared the sample below for your reference. Please modify the sample as per your requirement to replicate the issue, which will help us to assist you in a better way.

i398578.zip

Regards,
Sriram Kiran