Git SSH in RStudio works using the GUI button, but not using shell

Question

I have an RStudio project connected to a GitHub repository. I'm using SSH authentication and I can commit, push/pull using RStudio's GUI with no problem. However, when I try pushing using the shell by eg git push or git push -u origin master I get an error

Could not create directory 'c/Users/<user>/<path>/<reponame>/=/.ssh'

I have checked many related questions, but none of them seems to solve this issue. How come the gui push button achieves the desired result, while the above code fails? If I change authentication to https, I can push/pull using the shell, so it is clear that it has something to do with ssh.

I'm on Win10, using RStudio 1.1.383 and Git 2.8.3.windows.1.

Any ideas?

Answer 1

Check your git config -l for any SSH related setting.
Check also your environment variable (type 'set' in a CMD, or env in a git bash). I would double-check the value of %HOME% or $HOME in your bash session.

I suspect a variable or configuration with an incorrect value, including an ' = ' in it.

As seen in the comments:

set HOME=%USERPROFILE% changed the HOME path.