The SVN url has been changed by SourceForge. In your repository root, or in an individual module, run the command:
svn switch --relocate https://apertium.svn.sourceforge.net/svnroot/apertium/ https://svn.code.sf.net/p/apertium/svn/

From Apertium

Hello. Welcome to Apertium. I will perhaps try to add a few words this weekend if I have the time and inclination. But I do not guarantee anything. --Youssefsan 19:39, 25 September 2007 (BST)

Thanks Youssef! Please see comments about the Dutch dictionary at Afrikaans to Dutch. Naudefj 06:55, 26 September 2007 (BST)