Git push error '[remote rejected] master -> master (branch is currently checked out)'

Question

Yesterday, I posted a question on how to clone a Git repository from one of my machines to another, How can I \'git clone\' from another machine?.

I am now

Answer 1

I had to re-run git --init in an existing bare repository, and this had created a .git directory inside the bare repository tree - I realized that after typing git status there. I deleted that and everything was fine again :)

(All these answers are great, but in my case it was something completely different (as far as I can see), as described.)