I have just installed GitLab.
I created a project called project-x.
I have created few users and assigned it to the project.
Now I tried to clone:
if you are sure that you have uploaded the content of key.pub into GitLab, then:
1- Open Git Bash "Not CMD"
2- Browse to Solution Folder "CD Path"
3- Type Git Init
4- Type Git Add .
4- Type Git Commit
6- Type Git Push
and it will work.. another hint: make sure the path of the file where you copied the key is correct and equivalent to the same path it showed on CMD when creating the keys