Trying to upgrade an svn repository, I got the the error:

vn: E155016: Insufficient NODES rows for

followed by the path to a file. This can be solved by deleting a certain file type:

Find them:

find . -name dir-prop-revert

To delete them:

find . -name dir-prop-revert -exec rm {} ;

If you’d like to make backups instead:

find . -name dir-prop-revert -exec mv {} {}.backup ;

Now try the upgrade again:

svn upgrade

No more error messages. 🙂