Can't download the project through unity git system.

[impactcsgo]

[Package Manager Window] Cannot perform upm operation: Unable to add package [https://github.com/DavidArayan/ezy-slice.git]:
[https://github.com/DavidArayan/ezy-slice.git] does not point to a valid package. No package manifest was found. [NotFound].
UnityEditor.EditorApplication:Internal_CallUpdateFunctions ()

First I had an error about git not installed on windows, now I have this error, seems it is coming from the git repository ?

Thanks for further help

[0kk470]

UPM needs a manifest file (packages.json) to resolve a package.
You could clone this repo and create one yourself.
See this for more information about creating custom packages.