There isn't anything to compare. Nothing to compare, branches are entirely different commit histories

Question

I have a CMS theme installed on my machine. I\'m tracking changes to it via git and decided to back it up on GitHub so I could share those changes.

The theme as prov

Answer 1

I got this error message, because I was migrating an application from SVN to GitHub and it's not enough to invoke a git init in the location of the source code checked out from SVN, but you need to invoke a git svn clone in order to have all the commit history. This way the two source codes on GitHub will have a mutual history and I was able to open pull requests.