The following UnimplementedError was thrown building Builder:

[AfnanAbAs]

Im running a code the showes me this error below ..and in my phone shows red screen says " unimplementesError see also flutter.dev/docs/tresting/errors "

Launching lib\main.dart on SM N975F in debug mode...

lib\main.dart:1
√ Built build\app\outputs\flutter-apk\app-debug.apk.
254
I/ViewRootImpl@fbaf98dMainActivity: [DP] cancelDraw io.flutter.embedding.android.FlutterActivityAndFragmentDelegate$2@3fef5a8 isViewVisible: true
Connecting to VM Service at ws://127.0.0.1:54991/hChdXgYFFhk=/ws
79
I/ViewRootImpl@fbaf98dMainActivity: [DP] cancelDraw io.flutter.embedding.android.FlutterActivityAndFragmentDelegate$2@3fef5a8 isViewVisible:

════════ Exception caught by widgets library ═══════════════════════════════════
The following UnimplementedError was thrown building Builder:
UnimplementedError

The relevant error-causing widget was
MaterialApp
lib\main.dart:16
When the exception was thrown, this was the stack
#0 Splashscreen.createState
package:budsgrowth/…/Splashscreen/Splashscreen.dart:16
#1 new StatefulElement
package:flutter/…/widgets/framework.dart:4754
#2 StatefulWidget.createElement
package:flutter/…/widgets/framework.dart:737
... Normal element mounting (169 frames)
#171 Element.inflateWidget
package:flutter/…/widgets/framework.dart:3673
#172 MultiChildRenderObjectElement.inflateWidget
package:flutter/…/widgets/framework.dart:6333
#173 MultiChildRenderObjectElement.mount
package:flutter/…/widgets/framework.dart:6344
... Normal element mounting (356 frames)
#529 Element.inflateWidget
package:flutter/…/widgets/framework.dart:3673
#530 Element.updateChild
package:flutter/…/widgets/framework.dart:3425
#531 ComponentElement.performRebuild
package:flutter/…/widgets/framework.dart:4690
#532 _InheritedProviderScopeElement.performRebuild
package:provider/src/inherited_provider.dart:495
#533 Element.rebuild
package:flutter/…/widgets/framework.dart:4355
#534 ComponentElement._firstBuild
package:flutter/…/widgets/framework.dart:4643
#535 ComponentElement.mount
package:flutter/…/widgets/framework.dart:4638
#536 _InheritedProviderScopeElement.mount
package:provider/src/inherited_provider.dart:395
... Normal element mounting (7 frames)
(elided 11 frames from class _RawReceivePortImpl, class _Timer, dart:async, and dart:async-patch)

thev flutter doctor Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel stable, 2.5.3, on Microsoft Windows [Version 10.0.19043.1348], locale en-IL)
[√] Android toolchain - develop for Android devices (Android SDK version 31.0.0)
[√] Chrome - develop for the web
[√] Android Studio (version 2020.3)
[√] VS Code (version 1.62.3)
[√] Connected device (3 available)

• No issues found!

im using VS ..

[devnoaman]

is it solved or. not

[Marcocholla01]

anyone with the solution