You may get this error if your svn repository moved:
You will need to relocate your svn source repository.
Here's the scenario:
svn: Commit failed (details follow):
svn: Unable to open an ra_local session to URL
svn: Unable to open repository 'file:///path/to/repository'
Open terminal and do the following to update the location of the repository:
Check where the current location of the repository is using:
Repository was located in:
Repository moved to:
Files are located in:
Look for "Repository Root:" ("file:///home/user/var/www/repositories/www.example.com/")
Now to switch the repository root, do the following:
That is, svn switch --relocate old_repo new_repo.
Again, do svn info to check that the repository root has been updated.
svn switch --relocate file:///home/user/var/www/repositories/www.example.com/ file:///home/user/mounts/www.example.com/web/repository/
NOTE: Remember there are three (3) slashes after file in file:///