Intro

I have new project.

I have pub.spec generated by Android studio official flutter plugin.

Nothing manually added / changed in config.

Problem

When I run pub get I receive error:

The current Dart SDK version is 3.1.3.

Because my_app depends on dependencies any which doesn't support null safety, version solving failed.

The lower bound of "sdk: '>=2.0.0 <3.0.0'" must be 2.12.0 or higher to enable null safety.

my pub.spec

name: my_app
description: A new Flutter project.
publish_to: 'none'
version: 1.0.0

environment:
  sdk: '>=3.1.3 <4.0.0'

dependencies:
  dependencies:
  flutter:
    sdk: flutter

dev_dependencies:
  flutter_test:
    sdk: flutter
  flutter_lints: ^2.0.0

flutter:
  uses-material-design: true
  assets:
     - assets/images/icons/

Question

1 How to solve it?

2 What does it means depends on dependencies any ?

>Solution :

Your pubspec.yaml seems messed up by something. You have dependencies twice so it does actually attempt install a package named dependencies which in fact does exist but are very old and deprecated (and does not support null-safety). Try use this instead:

dependencies:
  flutter:
    sdk: flutter