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

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

Related

Flutter Error at runningError in new project Error: Couldn't find constructor 'StandardMessageCodec'

I had these errors didn't upgrade to the new version I even created a new project but I had the same error
^^^^^^^^^^^^^^^^^^^^
: Error: Couldn't find constructor 'StandardMessageCodec'.
../…/services/restoration.dart:326
final ByteData encoded = const StandardMessageCodec().encodeMessage(data)!;
^^^^^^^^^^^^^^^^^^^^
: Error: Couldn't find constructor 'StandardMessageCodec'.
../…/services/restoration.dart:1007
const StandardMessageCodec().encodeMessage(object);
^^^^^^^^^^^^^^^^^^^^
: Error: Couldn't find constructor 'StandardMessageCodec'.
../…/rendering/binding.dart:365
args != null ? const StandardMessageCodec().decodeMessage(args) : null,
^^^^^^^^^^^^^^^^^^^^
2
FAILURE: Build failed with an exception.
Where:
Script '/Users/abdjalildanane/development/flutter/packages/flutter_tools/gradle/flutter.gradle' line: 1159
What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
Process 'command '/Users/abdjalildanane/development/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 21s
Exception: Gradle task assembleDebug failed with exit code 1

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)

Flutter Run : FAILURE Build failed with an exception

Please help me. Since I cloned this project from git I always get the following error message
../../../AppData/Local/Pub/Cache/hosted/pub.dev/flutter_math_fork-0.5.0/lib/src/encoder/tex/functions/frac.dart:113:37: Error: The getter 'optionsDiff' isn't defined for the class 'GreenNode'.
- 'GreenNode' is from 'package:flutter_math_fork/src/ast/syntax_tree.dart' ('../../../AppData/Local/Pub/Cache/hosted/pub.dev/flutter_math_fork-0.5.0/lib/src/ast/syntax_tree.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'optionsDiff'.
final remainingOptions = node.optionsDiff.removeStyle();
^^^^^^^^^^^
../../../AppData/Local/Pub/Cache/hosted/pub.dev/flutter_math_fork-0.5.0/lib/src/encoder/tex/functions/frac.dart:138:37: Error: The getter 'optionsDiff' isn't defined for the class 'GreenNode'.
- 'GreenNode' is from 'package:flutter_math_fork/src/ast/syntax_tree.dart' ('../../../AppData/Local/Pub/Cache/hosted/pub.dev/flutter_math_fork-0.5.0/lib/src/ast/syntax_tree.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'optionsDiff'.
final remainingOptions = node.optionsDiff.removeStyle();
^^^^^^^^^^^
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:compileFlutterBuildDevDebug'.
> 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 8s
Running Gradle task 'assembleDebug'... 9.6s
Exception: Gradle task assembleDebug failed with exit code 1
I have tried
flutter pub get
flutter clean
But still, get the error message above. I am getting error messages only in this project. if I do flutter run in another project it can run without problem.

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 'SystemMouseCursors' isn't defined for the class '_LegendItemState'

I'm using Flutter to code the frontend interface of my App but I got this problem. I don't get it, can you help me understand the error ?
The error :
../../Documents/flutter/.pub-cache/hosted/pub.dartlang.org/syncfusion_flutter_core-19.4.56/lib/src/legend/legend.dart:1329:21: Error: The getter 'SystemMouseCursors' isn't defined for the class '_LegendItemState'.
'_LegendItemState' is from 'package:syncfusion_flutter_core/src/legend/legend.dart' ('../../Documents/flutter/.pub-cache/hosted/pub.dartlang.org/syncfusion_flutter_core-19.4.56/lib/src/legend/legend.dart'). Try correcting the name to the name of an existing getter, or defining a getter or field named 'SystemMouseCursors'. cursor: SystemMouseCursors.click, ^^^^^^^^^^^^^^^^^^
FAILURE: Build failed with an exception.
Where: Script '/Users/macbookpro/Documents/flutter/packages/flutter_tools/gradle/flutter.gradle' line: 991
What went wrong: Execution failed for task ':app:compileFlutterBuildDebug'.
Process 'command '/Users/macbookpro/Documents/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 20s Exception: Gradle task assembleDebug failed with exit code 1