Why can't SVN find the repository location for revison 0

Question

I've recently upgraded the version of SVN and TortoiseSVN that I have installed on my workstation and whenever I check the diffs on a file without any changes, I get the following error.

Unable to find repository location for "<path>" in revision 0

I've checked out a fresh copy of one of my projects (I've tried it on a few), and it still gives me the same result.

I've tried upgrading SVN on my work station in hopes it would fix the problem (I assumed an incomparability) - no dice.

I also tried re-installing TortoiseSVN completely - again, no dice.

The only other funny thing I've done is move the location of the original repository (stored in on the file system, not a DB). But its path is the same as the error message, so I believe it's finding the repository.

What else could be the cause?

Answer 1

This appears to be the expected result for checking the diffs on a file without any changes. I was expecting a result like "the file is up to date", but going back to an older version of TortoiseSVN on a different workstation that I was confident was still working gave me the same result for an unedited file.