[svn] SVN - Checksum mismatch while updating

When I try to update some files from Subversion, I get the error:

org.tigris.subversion.javahl.ClientException: 
Checksum mismatch while updating 'D:\WWW\Project\\.svn\text-base\import.php.svn-base'; expected: '3f9fd4dd7d1a0304d8020f73300a3e07', actual: 'cd669dce5300d7035eccb543461a961e'

Why do I get this? How can I fix it?

In case you are using SVN 1.7+ there is a workaround described here.

Just to recap:

1. Go to the folder with the file causing problems
2. Execute command svn update --set-depth empty (note: this will delete your files, so make a copy first!)
3. Execute command svn update --set-depth infinity