Can't set fixed Flutter version on pubspec.yaml

[RodXander]

Is there an existing issue for this?

• I have searched the existing issues
• I have read the guide to filing a bug

Steps to reproduce

1. In the pubspec.yaml of an empty project set the environment section to a specific version of Flutter, like so:

environment:
  flutter: 3.10.0

2. In your pubspec.lock you'll see:

sdks:
  flutter: ">=3.10.0"

However, if you do the same with the sdk, it'll work as expected, meaning:

environment:
  sdk: 3.0.0

will yield

sdks:
  dart: "3.0.0"

Expected results

pub get

Should fail for versions of Flutter previous or later than the one set in the pubspec.yaml.

Actual results

pub get

Only fail for versions of Flutter previous to the one set. Later ones are not stopped.

Code sample

environment:
  flutter: 3.10.0

Screenshots or Video

Screenshots / Video demonstration

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Logs

Logs

[Paste your logs here]

Flutter Doctor output

[✓] Flutter (Channel stable, 3.10.0, on macOS 13.2.1 22D68 darwin-arm64, locale en-CA)
    • Flutter version 3.10.0 on channel stable at /Users/rodxander/fvm/versions/3.10.0
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 84a1e904f4 (2 days ago), 2023-05-09 07:41:44 -0700
    • Engine revision d44b5a94c9
    • Dart version 3.0.0
    • DevTools version 2.23.1

[✓] Android toolchain - develop for Android devices (Android SDK version 33.0.1)
    • Android SDK at /Users/rodxander/Library/Android/sdk
    • Platform android-33, build-tools 33.0.1
    • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 14.3)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 14E222b
    • CocoaPods version 1.11.3

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2022.1)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 11.0.15+0-b2043.56-8887301)

[✓] VS Code (version 1.77.1)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension version 3.62.0

[✓] Connected device (3 available)
    • sdk gphone64 arm64 (mobile) • emulator-5554 • android-arm64  • Android 13 (API 33) (emulator)
    • macOS (desktop)             • macos         • darwin-arm64   • macOS 13.2.1 22D68 darwin-arm64
    • Chrome (web)                • chrome        • web-javascript • Google Chrome 112.0.5615.137

[✓] Network resources
    • All expected network resources are available.

• No issues found!

[stuartmorgan]

Duplicate of #95472

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.