_CastError (type '_InternalLinkedHashMap<String, dynamic>' is not a subtype of type 'List<dynamic>?' in type cast)

[Cengizhan00]

Stories _$StoriesFromJson(Map<String, dynamic> json) {
return Stories(
storyId: json['storyId'] as String?,
date: json['date'] == null ? null : DateTime.parse(json['date'] as String),
file: (json['file'] as List<dynamic>?)?.map((e) => StoryData.fromJson(e as Map<String, dynamic>)).toList(),
previewImage: json['previewImage'] as String?,
previewTitle: (json['previewTitle'] as Map<String, dynamic>?)?.map(
(k, e) => MapEntry(k, e as String),
),
);
}

[Cengizhan00]

@awaik

[Cengizhan00]

I solved the above problem, this time it gives this error

_TypeError (type '() => Null' is not a subtype of type '(() => StoryItem)?' of 'orElse')

[shukill]

@awaik this issue is still persesting _TypeError (type '() => Null' is not a subtype of type '(() => StoryItem)?' of 'orElse')

[awaik]

Can you please provide full error log?

[shukill]

`[GETX] OPEN BOTTOMSHEET 71736793
[GETX] GOING TO ROUTE /StoriesSection

════════ Exception caught by widgets library ═══════════════════════════════════
The following _TypeError was thrown building RawGestureDetector(state: RawGestureDetectorState#6fcd5(gestures: [vertical drag])):
type '() => Null' is not a subtype of type '(() => StoryItem)?' of 'orElse'

The relevant error-causing widget was
GetMaterialApp
lib/main.dart:44
When the exception was thrown, this was the stack
#0 ListMixin.firstWhere (dart:collection/list.dart)
#1 StoryViewState.initState
package:flutter_instagram_stories/story_view.dart:322
#2 StatefulElement._firstBuild
package:flutter/…/widgets/framework.dart:4942
#3 ComponentElement.mount
package:flutter/…/widgets/framework.dart:4781
... Normal element mounting (32 frames)
#35 Element.inflateWidget
package:flutter/…/widgets/framework.dart:3817
#36 MultiChildRenderObjectElement.inflateWidget
package:flutter/…/widgets/framework.dart:6350
#37 MultiChildRenderObjectElement.mount
package:flutter/…/widgets/framework.dart:6362
... Normal element mounting (29 frames)
#66 Element.inflateWidget
package:flutter/…/widgets/framework.dart:3817
#67 Element.updateChild
package:flutter/…/widgets/framework.dart:3545
#68 ComponentElement.performRebuild
package:flutter/…/widgets/framework.dart:4832
#69 StatefulElement.performRebuild
package:flutter/…/widgets/framework.dart:4977
#70 Element.rebuild
package:flutter/…/widgets/framework.dart:4529
#71 BuildOwner.buildScope
package:flutter/…/widgets/framework.dart:2659
#72 WidgetsBinding.drawFrame
package:flutter/…/widgets/binding.dart:891
#73 RendererBinding._handlePersistentFrameCallback
package:flutter/…/rendering/binding.dart:370
#74 SchedulerBinding._invokeFrameCallback
package:flutter/…/scheduler/binding.dart:1146
#75 SchedulerBinding.handleDrawFrame
package:flutter/…/scheduler/binding.dart:1083
#76 SchedulerBinding._handleDrawFrame
package:flutter/…/scheduler/binding.dart:997
#80 _invoke (dart:ui/hooks.dart:151:10)
#81 PlatformDispatcher._drawFrame (dart:ui/platform_dispatcher.dart:308:5)
#82 _drawFrame (dart:ui/hooks.dart:115:31)

(elided 3 frames from dart:async)
════════════════════════════════════════════════════════════════════════════════`

@awaik

[Akperhe]

am having same issue. I have done automatically, that is by generating the data class by vs code pluggin.

[awaik]

Hi,
Somehow, I couldn't repeat it with an example project.
If you have open-source repo - can you please give me a link to it and I'll try to catch this bug.

[mapkbalaji]

I too am getting the same bug

[Cengizhan00]

I solved the problem. You can solve it by following the steps below.

error: _TypeError (type '() => Null' is not a subtype of type '(() => StoryItem)?' of 'orElse')

solution: I used firstWhereOrNull instead of 'firstWhere' everywhere in 'story_view.dart', function from 'collection' package and it solved my problem.

Below is an example usage.

Replace firstWhere with firstWhereOrNull