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

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?

Related

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

how to fix the below error after upgrading my flutter

/C:/Users/Funmi/AppData/Local/Pub/Cache/hosted/pub.dartlang.org/isolate_bloc-1.0.4/lib/src/common/isolate/platform_channel/isolated_platform_channel_middleware.dart:29:25: Error: The method 'setMockMessageHandler' isn't defined for the class 'BinaryMessenger'.
'BinaryMessenger' is from 'package:flutter/src/services/binary_messenger.dart' ('/C:/Users/Funmi/flutter/packages/flutter/lib/src/services/binary_messenger.dart').
Try correcting the name to the name of an existing method, or defining a method named 'setMockMessageHandler'.
platformMessenger.setMockMessageHandler(channel, (message) {
^^^^^^^^^^^^^^^^^^^^^
FAILURE: Build failed with an exception.
Where:
Script 'C:\Users\Funmi\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1052
What went wrong:
Execution failed for task ':app:compileFlutterBuildRelease'.
Process 'command 'C:\Users\Funmi\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 39s
Running Gradle task 'assembleRelease'... 40.2s
Gradle task assembleRelease failed with exit code 1
Finished with error: Gradle task assembleRelease failed with exit code 1
check this website and apply it by order some values end of the implementation or classpath could be old , search and change compared to depracated.

Failed to build after upgrade to flutter 1.2

../../flutter/.pub-cache/hosted/pub.dartlang.org/flutter_datetime_picker-1.3.8/lib/src/datetime_picker_theme.dart:6:28: Error: Type 'DiagnosticableMixin' not found.
class DatePickerTheme with DiagnosticableMixin {
^^^^^^^^^^^^^^^^^^^
../../flutter/.pub-cache/hosted/pub.dartlang.org/flutter_datetime_picker-1.3.8/lib/src/datetime_picker_theme.dart:6:7: Error: The type 'DiagnosticableMixin' can't be mixed in.
class DatePickerTheme with DiagnosticableMixin {
^
FAILURE: Build failed with an exception.
* Where:
Script '/home/tfradebe/flutter/packages/flutter_tools/gradle/flutter.gradle' line: 896
* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command '/home/tfradebe/flutter/bin/flutter'' 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 28s
Running Gradle task 'assembleDebug'...
Running Gradle task 'assembleDebug'... Done 29.1s
Exception: Gradle task assembleDebug failed with exit code 1
There is a fix in progress to solve this issue that affected many plugins. In the meantime, you can include the reference to flutter_datetime_picker like this
flutter_datetime_picker:
git:
url: https://github.com/ditheshthegreat/flutter_datetime_picker # Repo
ref: patch-1 # Branch name
This is the github related ticket

Why do I get "FAILURE: Build failed with an exception."?

When I try to start my app I get an error. I think I get the error because I tried to add a video in my app, because before I did this everything worked without an error.
This is the error:
Launching lib\main.dart on SM J530F in debug mode...
Running Gradle task 'assembleDebug'...
Target debug_android_application failed: FileSystemException: Cannot copy file to 'C:\Users\Simon\Desktop\App Entwickeln\Projekte\trainings_app\build\app\intermediates\flutter\debug\flutter_assets\assets/coffee.mp4', path = 'C:\Users\Simon\Desktop\App Entwickeln\Projekte\trainings_app\assets\coffee.mp4' (OS Error: Zugriff verweigert
, errno = 5)
build failed.
FAILURE: Build failed with an exception.
* Where:
Script 'C:\Users\Simon\Desktop\App Entwickeln\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 882
* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'C:\Users\Simon\Desktop\App Entwickeln\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 26s
Exception: Gradle task assembleDebug failed with exit code 1
Try flutter clean then build again
That looks like a file permissions related issue. Do you get error when you try below code in command line? If you have you need to check permission of the path you gave.
copy "C:\Users\Simon\Desktop\App Entwickeln\Projekte\trainings_app\assets\coffee.mp4" "C:\Users\Simon\Desktop\App Entwickeln\Projekte\trainings_app\build\app\intermediates\flutter\debug\flutter_assets\assets/coffee.mp4"

Finished with error: Gradle task assembleDebug failed with exit code 1, When I updated Flutter SDK to v1.12.13+hotfix.5

Compiler message:
../../../flutter/.pub-cache/hosted/pub.dartlang.org/cached_network_image-1.1.3/lib/src/cached_network_image_provider.dart:42:24: Error: The method 'CachedNetworkImageProvider.load' has fewer positional arguments than those of overridden method 'ImageProvider.load'.
ImageStreamCompleter load(CachedNetworkImageProvider key) {
^
../../../flutter/packages/flutter/lib/src/painting/image_provider.dart:403:24: Context: This is the overridden method ('load').
ImageStreamCompleter load(T key, DecoderCallback decode);
^
Target kernel_snapshot failed: Exception: Errors during snapshot creation: null
build failed.
FAILURE: Build failed with an exception.
Where:
Script '/Users/shutter/Desktop/flutter/packages/flutter_tools/gradle/flutter.gradle' line: 780
What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
Process 'command '/Users/shutter/Desktop/flutter/bin/flutter'' 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 1m 1s
Finished with error: Gradle task assembleDebug failed with exit code 1
Just replace cached_network_image:1.1.3 with cached_network_image: ^2.0.0-rc in your pubspec.yaml file, refer this for more.
Flutter v1.12.13 is having issues
I have resolved this issue by doing following changes
Switch to master channel of flutter
Update flutter to 1.13.5
created new project
copy paste old files into new project
Voila it's worked