I abandoned a project I was working on for a while I came back to open it on upgraded flutter and dart plugin in visual studio code windows 10.now I get so many problems. is there a way to automatically update code to solve these errors?
2 Answers
do these steps:
- delete
buildfolder - delete
.ideafolder - run
flutter clean - run
flutter pub get - run
flutter pub upgrade
then try to run your project.
The simple answer is it depends.
Judging by the comments from a reasonably good answer by Hasan Abbasi, this wasn't enough. Depending on how old your project is, there are 2 choices before or after doing what that answer said:
- If it's any more than 2 or 3 years old, I'd probably rewrite it from scratch. In that time, Flutter and Dart have matured greatly, which involves many breaking changes. Also, null-safety has been introduced. Creating a new project after updating Flutter will also fix those Gradle issues because the configuration files will be reset.
- If it's less than that, try to fix those Gradle issues either by hand or just deleting the '/android' or '/ios' etc. folders and letting Flutter/Dart automatically recreate them when you run the app next. You'll probably need to migrate to null-safety: read about null-safety so you understand it properly, then try using the
dart migratetool. You will likely need to spend some time changing dependencies for null-safe versions. Then you can try theflutter fixtool to automatically resolve SOME issues.
Hope you can get your app to work soon!
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