Jenkins tests not running. How to run source code from GitHub?

Question

git

situation: tests from Jenkins do not start, I get such an error on the console, I

tried different GIT plugins, reinstalled the console git on the machine, nothing helps
the project configuration
-Freestyle
-Git

-Build

what's the problem? I can’t understand in any way, the tests are falling (
also when installing the “Post-assembly operation”
I get an error:

Answer 1

As far as I understand there is no access to your repo. For private, you need to add credentials.
Or there is no master branch in the repo.