3

/C:/FlutterSdk/flutter/.pub-cache/hosted/pub.dartlang.org/fl_chart-0.50.5/lib/src/chart/pie_chart/pie_chart.dart:42:29: Error: Method 'addPostFrameCallback' cannot be called on 'WidgetsBinding?' because it is potentially null.

  • 'WidgetsBinding' is from 'package:flutter/src/widgets/binding.dart' ('/C:/FlutterSdk/flutter/packages/flutter/lib/src/widgets/binding.dart'). Try calling using ?. instead. WidgetsBinding.instance.addPostFrameCallback((_) { ^^^^^^^^^^^^^^^^^^^^

FAILURE: Build failed with an exception.

  • Where: Script 'C:\FlutterSdk\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1102

  • What went wrong: Execution failed for task ':app:compileFlutterBuildDebug'.

Process 'command 'C:\FlutterSdk\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 33s Running Gradle task 'assembleDebug'... 38.2s Exception: Gradle task assembleDebug failed with exit code 1

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5 Answers 5

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4

use flutter pub cache repair command

because flutter stores the data in its own storage, and if it gets full, it will throw an error

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1

lib provider had breaking changes when migrating to flutter 3 but didn't bump the major version, you can try locking the version in pubspec.yml or migrate to flutter 3 as well...

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1

There is one another similar error which indicates syntax error inside dart code. Full error text is like below:

What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command '/users/elmar/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 16s
Running Gradle task 'assembleDebug'...                             17.3s
Exception: Gradle task assembleDebug failed with exit code 1

You need to find and correct sytax error and app wil run without any error after that.

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1

don't forget to flutter pub get, I successfully used this method

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1

Delete this import of your code : import 'dart:js_util. That's all

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