avoid_returning_null_for_future

Avoid returning null for Future.

This rule has been removed as of the latest Dart releases.

NOTE: This rule is removed in Dart 3.3.0; it is no longer functional.

AVOID returning null for Future.

It is almost always wrong to return null for a Future. Most of the time the developer simply forgot to put an async keyword on the function.

To enable the avoid_returning_null_for_future rule, add avoid_returning_null_for_future under linter > rules in your analysis_options.yaml file:

linter:
  rules:
    - avoid_returning_null_for_future