Error: The getter ‘addressOf’ isn’t defined for the class in Flutter

/C:/src/flutter/.pub-cache/hosted/ Error: The getter ‘addressOf’ isn’t defined for the class ‘Utf8’.

  • ‘Utf8’ is from ‘package:ffi/src/utf8.dart’ (‘/C:/src/flutter/.pub-cache/hosted/’). Try correcting the name to the name of an existing getter, or defining a getter or field named ‘addressOf’. String toString() => fromUtf8(addressOf); ^^^^^^^^^ /C:/src/flutter/.pub-cache/hosted/ Error: No named parameter with the name ‘nullOk’. context != null ? Localizations.localeOf(context, nullOk: true) : null, ^^^^^^ /C:/src/flutter/packages/flutter/lib/src/widgets/localizations.dart:413:17: Context: Found this candidate, but the arguments don’t match. static Locale localeOf(BuildContext context) { ^^^^^^^^ /C:/src/flutter/.pub-cache/hosted/ Error: The getter ‘addressOf’ isn’t defined for the class ‘GUID’.

FAILURE: Build failed with an exception.

  • Where: Script ‘C:\src\flutter\packages\flutter_tools\gradle\flutter.gradle’ line: 1035
  • 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.


I got this error today. Here is what I did,

  1. Deleted .idea folder and build folder as well as pubspec-lock file.
  2. run flutter pub get
run in terminal in vs code
  1. flutter clean
  2. flutter pub get

after that app run successfully

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