This requires the 'super-parameters' language feature to be enabled

Question

I am using super keyword in initState method.but i am getting this error 'This requires the 'super-parameters' language feature to be enabled. Try updating your pubspec.yaml to set the minimum SDK constraint to 2.16.0 or higher, and running 'pub get'.dart(experiment_not_enabled)'.Need help please.

Answer 1

super-parameters were added in Dart 2.17.0.

If you're not already using the latest version, run

flutter upgrade

To use super-parameters in your app, open your pubspec.yaml file and update sdk to target min 2.17.0:

environment:
  sdk: ">=2.17.0 <3.0.0"

Answer 2

Also, if you have

environment:
  sdk: ">=2.17.0 <3.0.0"

and you still have an error, try to upgrade you dependencies:

flutter packages upgrade