I use a local Jenkins service on Ubuntu. I have created a local git repository with a Jenkinsfile:

git init
git add .
git commit -m "Initial commit"

The path to the local git repository looks this way: /home/my_user/projects/my_repo

Next I have created a mulitbranch pipeline job. I haved added Source/Git with the following path:

file:///home/my_user/projects/my_repo.git

and Credentials “None”
in the job configuration. Jenkins return the following message:

stderr: fatal: '/home/my_user/projects/my_repo.git' does not appear to be a git repository
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

How to fix that ?