Flutter - "requires SDK version >=2.18.0-271.2.beta <3.0.0, version solving failed." Error

Question

I am getting an error like this:

The current Dart SDK version is 2.17.5.

Because exampleapp requires SDK version >=2.18.0-271.2.beta <3.0.0, version solving failed.
pub get failed (1; Because keycehennemi requires SDK version >=2.18.0-271.2.beta <3.0.0, version solving failed.)

pubspec.yaml:

environment:
  sdk: '>=2.18.0-271.2.beta <3.0.0'

Exactly nek of the sdk? I do not understand. Thanks in advance for your help.

Answer 1

Run flutter --version to check your installed flutter and dart version

My case I am using stable version

Flutter 3.0.5 • channel stable • https://github.com/flutter/flutter.git  
Framework • revision f1875d570e (5 weeks ago) • 2022-07-13 11:24:16 -0700
Engine • revision e85ea0e79c
Tools • Dart 2.17.6 • DevTools 2.12.2

You can use

environment:
  sdk: ">=2.17.6 <3.0.0"

You can track the version from /sdk/releases