I had checked out a few files from the svn repository on an old machine, and then I moved the repository to a new server. I did not do a repo dump and move, just did a tar and scp and untar of the entire repository. When I try to check in to the new server [with the same hostname and same dir structure] it says:
svn: Commit failed (details follow):
svn: Server sent unexpected return value (500 Internal Server Error) in response to MKACTIVITY request for '/repos/papers/!svn/act/a49a699c-96a7-11df-9e8f-654930a0ec4e'
Whenever you move or backup a SVN Repo, you need to do a dump and then restore on the new machine. You can accomplish that by running:
svnadmin dump myrepos > dumpfile
Then move the
dumpfile onto the new machine using your transport tool of choice. Once on the new server:
svnadmin load newrepos < dumpfile
On your working copy, you will need to inform your svn client that the repo has moved.
Check your error log to dig deep into this issue. I suspect the issue is with your apache LoadModule configuration or with Authentication.