Adding Package using git URL error

[Muppetsg2]

Adding Package using git URL error

Unity Version: 6000.0.60f1

Description: I just wanted to add this package using git url. I opened Window/Package Manager, clicked +, then Install package from git URL... and the error occured. Error:

[Package Manager Window] Error adding package: https://github.com/LTMX/Unity.QOI.git.
Unable to add package [https://github.com/LTMX/Unity.QOI.git]:
  Package com.ltmx.unity.qoi@https://github.com/LTMX/Unity.QOI.git has invalid dependencies or related test packages:
    com.ltmx.cs.extensions (dependency): Version 'https://github.com/ltmx/Unity.CSharp.Extensions.git' is invalid. Expected a 'SemVer' compatible value.
UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()

[Muppetsg2]

Nevermind. I see this is a unity upm problem.
https://discussions.unity.com/t/custom-package-with-git-dependencies/732000/114

Suggestion

Add to Readme that this packages are needed to be added to projects by editing Packages/manifest.json and change git url in package.json to SemVer of com.ltmx.cs.extensions.