Installation failed

[MarcAnProv]

Hi, when running the command:
flutter pub add defer_pointer

I get the following error:
Unable to resolve package "defer_pointer" with the given git parameters

When running flutter doctor -v, here is the output:

    • Flutter version 3.3.6 on channel stable at C:\Users\provo\Documents\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 6928314d50 (5 days ago), 2022-10-25 16:34:41 -0400
    • Engine revision 3ad69d7be3
    • Dart version 2.18.2
    • DevTools version 2.15.0

[✓] Android toolchain - develop for Android devices (Android SDK version 32.0.0)
    • Android SDK at C:\Users\provo\AppData\Local\Android\sdk
    • Platform android-32, build-tools 32.0.0
    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
    • Java version OpenJDK Runtime Environment (build 11.0.11+9-b60-7590822)
    • All Android licenses accepted.

[✓] Chrome - develop for the web
    • Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe

[✓] Visual Studio - develop for Windows (Visual Studio Community 2019 16.10.4)
    • Visual Studio at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community
    • Visual Studio Community 2019 version 16.10.31515.178
    • Windows 10 SDK version 10.0.19041.0

[✓] Android Studio (version 2021.1)
    • Android Studio at C:\Program Files\Android\Android Studio
    • 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 11.0.11+9-b60-7590822)

[✓] VS Code (version 1.72.2)
    • VS Code at C:\Users\provo\AppData\Local\Programs\Microsoft VS Code
    • Flutter extension version 3.50.0

[✓] Connected device (3 available)
    • Windows (desktop) • windows • windows-x64    • Microsoft Windows [Version 10.0.19044.2130]
    • Chrome (web)      • chrome  • web-javascript • Google Chrome 106.0.5249.119
    • Edge (web)        • edge    • web-javascript • Microsoft Edge 106.0.1370.34

[✓] HTTP Host Availability
    • All required HTTP hosts are available

• No issues found!

[MarcAnProv]

I was able to resolve it by putting the dependency in pubspec.yaml directly, but still the originial command does not work.