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Debug ERROR  #443

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AssertionError: Error caught by widgets library, thrown building Unity.UIWidgets.material.AppBar(dependencies:System.Collections.Generic.List1[Unity.UIWidgets.foundation.DiagnosticsNode], state:Unity.UIWidgets.material._AppBarState#5F300). No MaterialLocalizations found. Unity.UIWidgets.material.AppBar widgets require MaterialLocalizations to be provided by a Localizations widget ancestor. Localizations are used to generate many different messages, labels,and abbreviations which are used by the material library. To introduce a MaterialLocalizations, either use a MaterialApp at the root of your application to include them automatically, or add a Localization widget with a MaterialLocalizations delegate. The specific widget that could not find a MaterialLocalizations ancestor was: Unity.UIWidgets.material.AppBar The ancestors of this widget were: Unity.UIWidgets.material.FlexibleSpaceBarSettings Unity.UIWidgets.widgets.ConstrainedBox(BoxConstraints(0.0<=w<=Infinity, 0.0<=h<=56.0)) Unity.UIWidgets.widgets.MediaQuery(Unity.UIWidgets.widgets.MediaQueryData(size: Size(320.0, 550.0), devicePixelRatio: 2.0, textScaleFactor: 1.0, platformBrightness: light, padding: EdgeInsets.zero, viewInsets: EdgeInsets.zero, alwaysUse24HourFormat: False, accessibleNavigation: FalsedisableAnimations: FalseinvertColors: FalseboldText: False)) Unity.UIWidgets.widgets.LayoutId-[<appBar>](id:appBar) Unity.UIWidgets.widgets.CustomMultiChildLayout Unity.UIWidgets.widgets.AnimatedBuilder(animation:Unity.UIWidgets.animation.AnimationController#58C00(⏭ 1.000; paused)) Unity.UIWidgets.widgets.DefaultTextStyle(inherit:False, color:Color(0xDD000000), backgroundColor:Color(0xDD000000), family:Roboto, size:14, weight:400, baseline:alphabetic, decoration:$decoration, decorationThickness:null, overflow:clip) Unity.UIWidgets.widgets.AnimatedDefaultTextStyle(duration:200ms, inherit:False, color:Color(0xDD000000), backgroundColor:Color(0xDD000000), family:Roboto, size:14, weight:400, baseline:alphabetic, decoration:$decoration, decorationThickness:null, textAlign:center, overflow:clip, maxLines:null) Unity.UIWidgets.material._InkFeatures-[GlobalKey#40700 ink renderer] Unity.UIWidgets.widgets.NotificationListener1[Unity.UIWidgets.widgets.LayoutChangedNotification]
Unity.UIWidgets.widgets.PhysicalModel(shape:rectangle, borderRadius:BorderRadius.zero, elevation:0.0, color:Color(0xFFFFFFFF), shadowColor:Color(0xFF000000))
Unity.UIWidgets.widgets.AnimatedPhysicalModel(duration:200ms, shape:rectangle, borderRadius:BorderRadius.zero, elevation:0.0, color:Color(0xFFFFFFFF), animateColor:False, shadowColor:Color(0xFF000000), animateShadowColor:True)
Unity.UIWidgets.material.Material(type:canvas, color:Color(0xFFFFFFFF), shape:null, borderOnForeground:True, borderRadius:null)
Unity.UIWidgets.widgets.PrimaryScrollController(Unity.UIWidgets.widgets.ScrollController#73000(no clients))
Unity.UIWidgets.material._ScaffoldScope
Unity.UIWidgets.material.Scaffold
Tal.TB.CourseMaker.LoginPage
Tal.TB.CourseMaker.CourseMakerApp
Unity.UIWidgets.widgets.Builder
Unity.UIWidgets.widgets.RepaintBoundary-[GlobalKey#9B200]
Unity.UIWidgets.widgets.IgnorePointer(ignoring:False)
Unity.UIWidgets.widgets.AnimatedBuilder(animation:Listenable.merge([Unity.UIWidgets.animation.AnimationController#91800(⏭ 1.000; paused; for Unity.UIWidgets.widgets.PageRouteBuilder)➩Unity.UIWidgets.animation.ProxyAnimation, kAlwaysDismissedAnimation➩Unity.UIWidgets.animation.ProxyAnimation➩Unity.UIWidgets.animation.ProxyAnimation]))
Unity.UIWidgets.widgets.RepaintBoundary
Unity.UIWidgets.widgets._FocusScopeMarker
Unity.UIWidgets.widgets.FocusScope
Unity.UIWidgets.widgets.PageStorage
Unity.UIWidgets.widgets.Offstage(offstage:False)
Unity.UIWidgets.widgets._ModalScopeStatus
Unity.UIWidgets.widgets._ModalScope-[GlobalKey#36300]
Unity.UIWidgets.widgets._OverlayEntry-[GlobalKey#C9F00]
Unity.UIWidgets.widgets.Stack(alignment:bottomLeft, fit:expand, overflow:clip)
Unity.UIWidgets.widgets._Theatre
Unity.UIWidgets.widgets.Overlay-[GlobalKey#6C500]
Unity.UIWidgets.widgets._FocusScopeMarker
Unity.UIWidgets.widgets.FocusScope
Unity.UIWidgets.widgets.AbsorbPointer(absorbing:False)
Unity.UIWidgets.widgets.Listener(listeners:down, up, cancel, behavior:deferToChild)
Unity.UIWidgets.widgets.Navigator-[Unity.UIWidgets.widgets.GlobalObjectKey1[Unity.UIWidgets.widgets.NavigatorState] Unity.UIWidgets.widgets._WidgetsAppState#14200] Unity.UIWidgets.widgets.Directionality Unity.UIWidgets.widgets.WindowProvider Unity.UIWidgets.widgets._LocalizationsScope-[GlobalKey#D8900] Unity.UIWidgets.widgets.Localizations(locale:en_US, delegates:DefaultWidgetsLocalizations.delegate(en_US)) Unity.UIWidgets.widgets.MediaQuery(Unity.UIWidgets.widgets.MediaQueryData(size: Size(320.0, 550.0), devicePixelRatio: 2.0, textScaleFactor: 1.0, platformBrightness: light, padding: EdgeInsets.zero, viewInsets: EdgeInsets.zero, alwaysUse24HourFormat: False, accessibleNavigation: FalsedisableAnimations: FalseinvertColors: FalseboldText: False)) Unity.UIWidgets.widgets.WidgetsApp [root] at Unity.UIWidgets.material.MaterialD+<>c__DisplayClass1_0.<debugCheckHasMaterialLocalizations>b__0 () [0x00132] in /Volumes/Work/gitlab/threebody-Editor/CourseCreater/Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/material/debug.cs:88 at Unity.UIWidgets.foundation.D.assert (System.Func1[TResult] result, System.Func1[TResult] message) [0x00001] in /Volumes/Work/gitlab/threebody-Editor/CourseCreater/Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/foundation/debug.cs:30 at Unity.UIWidgets.material.MaterialD.debugCheckHasMaterialLocalizations (Unity.UIWidgets.widgets.BuildContext context) [0x0000e] in /Volumes/Work/gitlab/threebody-Editor/CourseCreater/Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/material/debug.cs:53 at Unity.UIWidgets.material._AppBarState.build (Unity.UIWidgets.widgets.BuildContext context) [0x00001] in /Volumes/Work/gitlab/threebody-Editor/CourseCreater/Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/material/app_bar.cs:153 at Unity.UIWidgets.widgets.StatefulElement.build () [0x00001] in /Volumes/Work/gitlab/threebody-Editor/CourseCreater/Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2235 at Unity.UIWidgets.widgets.ComponentElement.performRebuild () [0x00010] in /Volumes/Work/gitlab/threebody-Editor/CourseCreater/Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2154 Unity.UIWidgets.material.MaterialD+<>c__DisplayClass1_0.<debugCheckHasMaterialLocalizations>b__0 () (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/material/debug.cs:88) Unity.UIWidgets.foundation.D.assert (System.Func1[TResult] result, System.Func`1[TResult] message) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/foundation/debug.cs:30)
Unity.UIWidgets.material.MaterialD.debugCheckHasMaterialLocalizations (Unity.UIWidgets.widgets.BuildContext context) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/material/debug.cs:53)
Unity.UIWidgets.material._AppBarState.build (Unity.UIWidgets.widgets.BuildContext context) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/material/app_bar.cs:153)
Unity.UIWidgets.widgets.StatefulElement.build () (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2235)
Unity.UIWidgets.widgets.ComponentElement.performRebuild () (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2154)
UnityEngine.Debug:LogException(Exception)
Unity.UIWidgets.foundation.D:logError(String, Exception) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/foundation/debug.cs:15)
Unity.UIWidgets.foundation.UIWidgetsError:dumpErrorToConsole(UIWidgetsErrorDetails, Boolean) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/foundation/assertions.cs:120)
Unity.UIWidgets.foundation.UIWidgetsError:dumpErrorToConsole(UIWidgetsErrorDetails) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/foundation/assertions.cs:105)
Unity.UIWidgets.foundation.UIWidgetsError:reportError(UIWidgetsErrorDetails) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/foundation/assertions.cs:131)
Unity.UIWidgets.widgets.WidgetsD:_debugReportException(String, Exception, InformationCollector) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/debug.cs:140)
Unity.UIWidgets.widgets.ComponentElement:performRebuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2158)
Unity.UIWidgets.widgets.Element:rebuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2078)
Unity.UIWidgets.widgets.ComponentElement:_firstBuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2146)
Unity.UIWidgets.widgets.StatefulElement:_firstBuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2265)
Unity.UIWidgets.widgets.ComponentElement:mount(Element, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2141)
Unity.UIWidgets.widgets.Element:inflateWidget(Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1507)
Unity.UIWidgets.widgets.Element:updateChild(Element, Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1348)
Unity.UIWidgets.widgets.ComponentElement:performRebuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2166)
Unity.UIWidgets.widgets.Element:rebuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2078)
Unity.UIWidgets.widgets.ComponentElement:_firstBuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2146)
Unity.UIWidgets.widgets.ComponentElement:mount(Element, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2141)
Unity.UIWidgets.widgets.Element:inflateWidget(Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1507)
Unity.UIWidgets.widgets.Element:updateChild(Element, Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1348)
Unity.UIWidgets.widgets.SingleChildRenderObjectElement:mount(Element, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2880)
Unity.UIWidgets.widgets.Element:inflateWidget(Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1507)
Unity.UIWidgets.widgets.Element:updateChild(Element, Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1348)
Unity.UIWidgets.widgets.ComponentElement:performRebuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2166)
Unity.UIWidgets.widgets.Element:rebuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2078)
Unity.UIWidgets.widgets.ComponentElement:_firstBuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2146)
Unity.UIWidgets.widgets.ComponentElement:mount(Element, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2141)
Unity.UIWidgets.widgets.Element:inflateWidget(Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1507)
Unity.UIWidgets.widgets.Element:updateChild(Element, Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1348)
Unity.UIWidgets.widgets.ComponentElement:performRebuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2166)
Unity.UIWidgets.widgets.Element:rebuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2078)
Unity.UIWidgets.widgets.ComponentElement:_firstBuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2146)
Unity.UIWidgets.widgets.ComponentElement:mount(Element, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2141)
Unity.UIWidgets.widgets.ParentDataElement:mount(Element, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2442)
Unity.UIWidgets.widgets.Element:inflateWidget(Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1507)
Unity.UIWidgets.widgets.MultiChildRenderObjectElement:mount(Element, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2969)
Unity.UIWidgets.widgets.Element:inflateWidget(Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1507)
Unity.UIWidgets.widgets.Element:updateChild(Element, Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1348)
Unity.UIWidgets.widgets.ComponentElement:performRebuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2166)
Unity.UIWidgets.widgets.Element:rebuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2078)
Unity.UIWidgets.widgets.ComponentElement:_firstBuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2146)
Unity.UIWidgets.widgets.StatefulElement:_firstBuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2265)
Unity.UIWidgets.widgets.ComponentElement:mount(Element, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2141)
Unity.UIWidgets.widgets.Element:inflateWidget(Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1507)
Unity.UIWidgets.widgets.Element:updateChild(Element, Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1348)
Unity.UIWidgets.widgets.ComponentElement:performRebuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2166)
Unity.UIWidgets.widgets.Element:rebuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2078)
Unity.UIWidgets.widgets.ComponentElement:_firstBuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2146)
Unity.UIWidgets.widgets.ComponentElement:mount(Element, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2141)
Unity.UIWidgets.widgets.Element:inflateWidget(Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1507)
Unity.UIWidgets.widgets.Element:updateChild(Element, Widget, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:1348)
Unity.UIWidgets.widgets.ComponentElement:performRebuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2166)
Unity.UIWidgets.widgets.Element:rebuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2078)
Unity.UIWidgets.widgets.ComponentElement:_firstBuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2146)
Unity.UIWidgets.widgets.StatefulElement:_firstBuild() (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2265)
Unity.UIWidgets.widgets.ComponentElement:mount(Element, Object) (at Library/PackageCache/com.unity.uiwidgets@1.5.4-preview.12/Runtime/widgets/framework.cs:2141)
Unity.UIWidgets.widget

Activity

  1. zhuxingwei commented on Nov 27, 2020

    @zhuxingwei
    Contributor

    Thanks for your question !

    The reason for this issue can be found just in the error message:

    No MaterialLocalizations found. Unity.UIWidgets.material.AppBar widgets require MaterialLocalizations to be provided by a Localizations widget ancestor. Localizations are used to generate many different messages, labels,and abbreviations which are used by the material library. To introduce a MaterialLocalizations, either use a MaterialApp at the root of your application to include them automatically, or add a Localization widget with a MaterialLocalizations delegate. The specific widget that could not find a MaterialLocalizations ancestor was: Unity.UIWidgets.material.AppBar

    Please add a MaterialLocalizations to your App and you can find how-to stuffs in relevant flutter docs.

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