This error message is a bit obtuse, but what it’s actually trying to tell you is that the remote server didn’t reply with a proper git response. Ultimately, there was a problem on the server running the git-receive-pack
process.
In the Git protocol, the first four bytes should be the line length. Instead, they were the characters Unab
… which is probably the beginning an error message of some kind. (ie, it’s probably “Unable to...
” do something).
What happens when you run ssh <host> git-receive-pack <path-to-git-repository>
? You should see the error message that your git client is barfing on and you may be able to correct it.