This question already has answers here:
Error: Member not found: 'FirebaseAppPlatform.verifyExtends'
(17 answers)
Closed last month.
I am trying to build my first flutter project that given to me by my mentor. I did not change any code in my project but I encountered with this problem.
Error: Member not found: 'FirebaseAppPlatform.verifyExtends'.
FirebaseAppPlatform.verifyExtends(_delegate);
How can I solve this? I already tried most known solutions btw.
Probably you are using some Firebase dependency that is upgrading the Firebase Core Platform to the version 4.5.2. So what you should do is to explicitly add the version 4.5.1 in the dependencies of your pubspec.yaml file like this:
dependencies:
firebase_core_platform_interface: 4.5.1
Related
When I add syncfusion_flutter_pdfviewer package in yaml file I am getting the below error. can anyone tell me what is that error states ?
/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/syncfusion_flutter_pdfviewer-20.2.48-beta/lib/src/common/pdfviewer_plugin.dart:21:23: Error: Type 'Uint8List' not found.
CancelableOperation<Uint8List?>? _nativeImage;
^^^^^^^^^
/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/syncfusion_flutter_pdfviewer-20.2.48-beta/lib/src/common/pdfviewer_plugin.dart:24:37: Error: Type 'Uint8List' not found.
After adding package, application should be compiled again.
Try running a command in terminal.
flutter run -d [device id]
UPDATE:
Also try to:
import 'dart:typed_data';
in a file where you are using syncfusion components.
The issue was also resolved for me by upgrading to the latest Flutter version (as of 22 October 2022).
Upgrade flutter to the latest version. This issue was solved after I upgraded to version 3.3.1.
Building flutter tool...
Error: Error when reading '../../../flutter/packages/flutter_tools/.packages': No such file or directory
Error: Couldn't resolve the package 'flutter_tools' in 'package:flutter_tools/executable.dart'.
../../../flutter/packages/flutter_tools/bin/flutter_tools.dart:7:8: Error: Not found: 'package:flutter_tools/executable.dart'
import 'package:flutter_tools/executable.dart' as executable;
^
../../../flutter/packages/flutter_tools/bin/flutter_tools.dart:10:14: Error: Method not found: 'main'.
executable.main(args);
^^^^
I had the issue in this post before and i followed its solution : I am not able to use flutter as im getting an error with the dart sdk, only it has been working for weeks until today then i ran into the error above.. anything i can do..
I reinstalled flutter linux version and it works just fine.
This question already has answers here:
Cannot run with sound null safety because dependencies don't support null safety
(17 answers)
Closed 8 months ago.
I want to build a web application bundle for my flutter project by using the command 'flutter build web'. However, I face an error i.e.
Target dart2js failed: Exception: Warning: The 'dart2js' entrypoint script is deprecated, please use 'dart compile js' instead.
Error: Cannot run with sound null safety, because the following dependencies don't support null safety:
I can run the app in debug mode but can't build the web bundle.
Apparently one of your packages does not support Null Safety and needs to be removed for your application to work.
The error message should tell you which package is affected.
There is no way to continue using it without effort, as it is deprecated and apparently not being developed further. You can fork the package and implement the null safety yourself, which should not be that hard. Or there is already a fork that has implemented it.
Solved: I updated the package that was the cause of the error, and it works now.
Closed. This question needs debugging details. It is not currently accepting answers.
Edit the question to include desired behavior, a specific problem or error, and the shortest code necessary to reproduce the problem. This will help others answer the question.
Closed 9 months ago.
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After upgrading to flutter 3.0.0.
i am getting this error:
Error: Member not found: 'UnicodeChar'.
int get UnicodeChar => Char.UnicodeChar;
Error: Setter not found: 'UnicodeChar'.
set UnicodeChar(int value) => Char.UnicodeChar = value;
Error: Member not found: 'AsciiChar'.
int get AsciiChar => Char.AsciiChar;
Error: Setter not found: 'AsciiChar'.
set AsciiChar(int value) => Char.AsciiChar = value;
here is the image:
In my case, it was one of the transitive dependencies that was outdated.
Upgrading dependencies resolved the issue for me.
From the Terminal (inside the project's folder):
flutter pub upgrade
From Visual Studio Code
Open Command Palette... (⌘ Command+P on MacOS)
Type Flutter: Upgrade Packages
From Android Studio
Open Search Everywhere (Shift, Shift on MacOS)
Type Flutter Pub Upgrade
To solve the error do the following
upgrade all the third party packages
flutter clean
delete pubspec.lock file
flutter pub get
You can learn more from the link below
https://youtu.be/lxeB5ZZyJXM
if it happens to you during flutterfire configure command put it into your terminal to fix it:
dart pub global activate flutterfire_cli
I yesterday upgraded to Flutter 2.0.6 and when I added web support to an existing project I am getting this error
lib/generated_plugin_registrant.dart:16:3: Error: Getter not found: 'AnotherFlushbarPlugin'.
AnotherFlushbarPlugin.registerWith(registrar);
I am using a dependency Flushbar thought it might be due to that I removed that package run flutter clean but no use the error is still there
Fixed the issue there was package Flushbar code in the yaml file, I removed the line "another_flushbar": ^1.10.10 to fix the issue