i update my flutter version Error in ruining flutter app - flutter

i update my flutter version to last update and i have error when in running my app
error:
Launching lib\main.dart on sdk gphone x86 64 in debug mode...
Running Gradle task 'assembleDebug'...
../../flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:88:26: Error: Type 'DiagnosticableMixin' not found.
class PictureStream with DiagnosticableMixin {
^^^^^^^^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:192:44: Error: Type 'DiagnosticableMixin' not found.
abstract class PictureStreamCompleter with DiagnosticableMixin {
^^^^^^^^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:88:7: Error: The type 'DiagnosticableMixin' can't be mixed in.
class PictureStream with DiagnosticableMixin {
^
../../flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:192:16: Error: The type 'DiagnosticableMixin' can't be mixed in.
abstract class PictureStreamCompleter with DiagnosticableMixin {
^
../../flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:167:11: Error: Superclass has no method named 'debugFillProperties'.
super.debugFillProperties(properties);
^^^^^^^^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:171:30: Error: The method 'toStringShort' isn't defined for the class 'PictureStreamCompleter'.
'PictureStreamCompleter' is from 'package:flutter_svg/src/picture_stream.dart' ('../../flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart').
Try correcting the name to the name of an existing method, or defining a method named 'toStringShort'.
ifPresent: _completer?.toStringShort(),
^^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/flutter_svg-0.17.4/lib/src/picture_stream.dart:266:11: Error: Superclass has no method named 'debugFillProperties'.
super.debugFillProperties(description);
^^^^^^^^^^^^^^^^^^^
FAILURE: Build failed with an exception.
Where:
Script 'C:\Users\lenovo\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 896
What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
Process 'command 'C:\Users\lenovo\flutter\bin\flutter.bat'' finished with non-zero exit value 1
Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
Get more help at https://help.gradle.org
BUILD FAILED in 52s
Exception: Gradle task assembleDebug failed with exit code 1

-- Run pub upgrade in the pubspec.yaml
-- Run pub get in the pubspec.yaml
-- Then run Flutter Clean
-- Restart your IDE
I faced similar error and that worked for me

Related

Flutter - Error Compiling project without changes

I am facing an issue in flutter for a couple of days
before I close Android Studio everything was working fine with no errors so far, next day I started it with no changes, and it shows me an error message and cannot compile while there is no errors in my code or in anything
../../AppData/Local/Pub/Cache/hosted/pub.dev/flutter_platform_widgets-1.20.0/lib/src/platform_dialog_action.dart:171:14:
Error: The method 'FlatButton' isn't defined for the class
'PlatformDialogAction'.
'PlatformDialogAction' is from 'package:flutter_platform_widgets/src/platform_dialog_action.dart'
('../../AppData/Local/Pub/Cache/hosted/pub.dev/flutter_platform_widgets-1.20.0/lib/src/platform_dialog_action.dart').
Try correcting the name to the name of an existing method, or defining
a method named 'FlatButton'.
return FlatButton(
^^^^^^^^^^ ../../AppData/Local/Pub/Cache/hosted/pub.dev/flutter_platform_widgets-1.20.0/lib/src/platform_button.dart:269:14:
Error: The method 'FlatButton' isn't defined for the class
'PlatformButton'.
'PlatformButton' is from 'package:flutter_platform_widgets/src/platform_button.dart'
('../../AppData/Local/Pub/Cache/hosted/pub.dev/flutter_platform_widgets-1.20.0/lib/src/platform_button.dart').
Try correcting the name to the name of an existing method, or defining
a method named 'FlatButton'.
return FlatButton(
^^^^^^^^^^ ../../AppData/Local/Pub/Cache/hosted/pub.dev/flutter_platform_widgets-1.20.0/lib/src/platform_button.dart:302:12:
Error: The method 'RaisedButton' isn't defined for the class
'PlatformButton'.
'PlatformButton' is from 'package:flutter_platform_widgets/src/platform_button.dart'
('../../AppData/Local/Pub/Cache/hosted/pub.dev/flutter_platform_widgets-1.20.0/lib/src/platform_button.dart').
Try correcting the name to the name of an existing method, or defining
a method named 'RaisedButton'.
return RaisedButton(
^^^^^^^^^^^^ Target kernel_snapshot failed: Exception
FAILURE: Build failed with an exception.
Where: Script 'C:\src\flutter\packages\flutter_tools\gradle\flutter.gradle' line:
1151
What went wrong: Execution failed for task ':app:compileFlutterBuildDebug'.
Process 'command 'C:\src\flutter\bin\flutter.bat'' finished with non-zero exit value 1
Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
Get more help at https://help.gradle.org
BUILD FAILED in 10s Exception: Gradle task assembleDebug failed with
exit code 1
I tried to restart, search, and made everything but then nothing worked for me
Does anybody have an idea why is that happening?
thanks in advance

Accidently replaced '.r' through whole app with '' in flutter project

I had lots of reference of '.r' through my flutter app and I replaced all '.r' references with '' empty string and I came to to know that dart files also have been modified and now I get these errors in my debug console. I tried to fix these but seems like re-adding '.r' isn't fixing these problems.
Debug Console:
Launching lib\main.dart on sdk gphone x86 in debug mode...
/C:/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider_windows-2.1.3/lib/src/path_provider_windows_real.dart:117:66: Error: Member not found: 'roamingAppData'.
final String? appDataRoot = await
getPath(WindowsKnownFolder.roamingAppData);
/C:/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider_windows-2.1.3/lib/src/path_provider_windows_real.dart:146:60: Error: The method 'rsetGUID' isn't defined for the class 'GUID'.
'GUID' is from 'package:win32/src/guid.dart' ('/C:/flutter/.pub-cache/hosted/pub.dartlang.org/win32-3.0.1/lib/src/guid.dart').
Try correcting the name to the name of an existing method, or defining a method named 'rsetGUID'.
final Pointer knownFolderID =
calloc().ref.rsetGUID(folderID);
/C:/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider_windows-2.1.3/lib/src/path_provider_windows_real.dart:235:5: Error: Expected an identifier, but got '.'.
Try inserting an identifier before '.'.
.replaceAll(RegExp(r'[<>:"/\\|?*]'), '_');
/C:/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider_windows-2.1.3/lib/src/path_provider_windows_real.dart:237:9: Error: Expected an identifier, but got '.'.
Try inserting an identifier before '.'.
.trimRight();
/C:/flutter/.pub-cache/hosted/pub.dartlang.org/path_provider_windows-2.1.3/lib/src/path_provider_windows_real.dart:239:5: Error: Expected an identifier, but got '.'.
Try inserting an identifier before '.'.
.replaceAll(RegExp(r'[<>:"/\|?*]'), '_');
FAILURE: Build failed with an exception.
Where:
Script 'C:\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1159
What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
Process 'command 'C:\flutter\bin\flutter.bat'' finished with non-zero exit value 1
Try:
Run with --stacktrace option to get the stack trace.
Run with --info or --debug option to get more log output.
Run with --scan to get full insights.
Get more help at https://help.gradle.org BUILD FAILED in 10s Exception: Gradle task assembleDebug failed with exit code 1 Exited (sigterm)

Awesome notification V0.7.1 fails to build

I'm having this problem, and ran out of options,
I tried all solutions mentioned in below link but with no success
how to solve Execution failed for task ':app:compileFlutterBuildDebug'
/C:/flutter/flutter/.pub-cache/hosted/pub.flutter-io.cn/awesome_notifications-0.7.1/lib/src/utils/resource_image_provider.dart:41:26: Error: Type 'DecoderBufferCallback' not found.
ResourceImage key, DecoderBufferCallback decode) {
^^^^^^^^^^^^^^^^^^^^^
/C:/flutter/flutter/.pub-cache/hosted/pub.flutter-io.cn/awesome_notifications-0.7.1/lib/src/utils/resource_image_provider.dart:49:26: Error: Type 'DecoderBufferCallback' not found.
ResourceImage key, DecoderBufferCallback decode) async {
^^^^^^^^^^^^^^^^^^^^^
/C:/flutter/flutter/.pub-cache/hosted/pub.flutter-io.cn/awesome_notifications-0.7.1/lib/src/utils/resource_image_provider.dart:22:7: Error: The non-abstract class 'ResourceImage' is missing implementations for these members:
- ImageProvider.load
Try to either
- provide an implementation,
- inherit an implementation from a superclass or mixin,
- mark the class as abstract, or
- provide a 'noSuchMethod' implementation.
class ResourceImage extends ImageProvider<ResourceImage> {
^^^^^^^^^^^^^
/C:/flutter/flutter/packages/flutter/lib/src/painting/image_provider.dart:567:24: Context: 'ImageProvider.load' is defined here.
ImageStreamCompleter load(T key, DecoderCallback decode);
^^^^
/C:/flutter/flutter/.pub-cache/hosted/pub.flutter-io.cn/awesome_notifications-0.7.1/lib/src/utils/resource_image_provider.dart:41:26: Error: 'DecoderBufferCallback' isn't a type.
ResourceImage key, DecoderBufferCallback decode) {
^^^^^^^^^^^^^^^^^^^^^
/C:/flutter/flutter/.pub-cache/hosted/pub.flutter-io.cn/awesome_notifications-0.7.1/lib/src/utils/resource_image_provider.dart:49:26: Error: 'DecoderBufferCallback' isn't a type.
ResourceImage key, DecoderBufferCallback decode) async {
^^^^^^^^^^^^^^^^^^^^^
FAILURE: Build failed with an exception.
* Where:
Script 'C:\flutter\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1156
* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'C:\flutter\flutter\bin\flutter.bat'' finished with non-zero exit value 1
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 32s
Exception: Gradle task assembleDebug failed with exit code 1
Basically the awesome notifications is trying to access "DecoderBufferCallback" variable from the flutter library but sadly in the flutter library they changed that variable name to "DecoderCallback"...
SO you need to actually edit the variable name in the library code of AwesomeNotifications from "DecoderBufferCallback" to "DecoderCallback".. This is their job but we are doing it for them
P.S.: I know the awesoome notifications version is older in this screenshot but i just wanted to show where to do the edit... so i opened up an older project

How to solve "Type 'GenerateAppTitle' not found"?

I would like to start a Flutter counter app. So I prepared all and started the flutter counter project.
Then I got this error:
Launching lib\main.dart on Android SDK built for x86 in debug mode...
Running Gradle task 'assembleDebug'...
../../../../../flutter/packages/flutter/lib/src/material/app.dart:365:9: Error: Type 'GenerateAppTitle' not found.
final GenerateAppTitle? onGenerateTitle;
^^^^^^^^^^^^^^^^
../../../../../flutter/packages/flutter/lib/src/cupertino/app.dart:292:9: Error: Type 'GenerateAppTitle' not found.
final GenerateAppTitle? onGenerateTitle;
^^^^^^^^^^^^^^^^
../../../../../flutter/packages/flutter/lib/src/material/app.dart:365:9: Error: 'GenerateAppTitle' isn't a type.
final GenerateAppTitle? onGenerateTitle;
^^^^^^^^^^^^^^^^
../../../../../flutter/packages/flutter/lib/src/cupertino/app.dart:292:9: Error: 'GenerateAppTitle' isn't a type.
final GenerateAppTitle? onGenerateTitle;
^^^^^^^^^^^^^^^^
FAILURE: Build failed with an exception.
* Where:
Script 'C:\Users\{mywindowsname}\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1156
* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'C:\Users\{mywindowsname}\flutter\bin\flutter.bat'' finished with non-zero exit value 1
* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 20s
Exception: Gradle task assembleDebug failed with exit code 1
I already tried everything within the following error question on "Execution failed for task ':app:compileFlutterBuildDebug'." error message until Jakub S. answer to remove .gradle folder.
how to solve Execution failed for task ':app:compileFlutterBuildDebug'
Currently I think the problem is with the '"GenerateAppTitle" not found' message.
I tried the counter app on VS Code and Android Studio.
Nothing worked. What could the solution be?

Error: The getter 'hellawait' isn't defined for the class 'IOClient'

I created and run a location and weather based app. But when I closed the VS Code and try to reinstall the app, the following error occurred!.
How to remove the error!.
Launching lib\main.dart on Infinix X655C in debug mode...
/C:/flutter/.pub-cache/hosted/pub.dartlang.org/http-0.13.4/lib/src/io_client.dart:35:34: Error: Expected ')' before this.
var ioRequest = (hellawait _inner!.openUrl(request.method, request.url))
^^^^^^
/C:/flutter/.pub-cache/hosted/pub.dartlang.org/http-0.13.4/lib/src/io_client.dart:35:24: Error: The getter 'hellawait' isn't defined for the class 'IOClient'.
- 'IOClient' is from 'package:http/src/io_client.dart' ('/C:/flutter/.pub-cache/hosted/pub.dartlang.org/http-0.13.4/lib/src/io_client.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'hellawait'.
var ioRequest = (hellawait _inner!.openUrl(request.method, request.url))
^^^^^^^^^
FAILURE: Build failed with an exception.
* Where:
Script 'C:\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1005
* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'C:\flutter\bin\flutter.bat'' finished with non-zero exit value 1
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 50s
Exception: Gradle task assembleDebug failed with exit code 1
Exited (sigterm)
I know its a bit ago, but
flutter pub cache repair
helped me