Scidb's repository has just disappeared, it is not possible to checkout the current source. Please wait with "svn update" until I inform about the new status.
The official announcement from Soureforge: ------------------------------------------ There’s an outage for the Project web space and code repositories. Our teams are investigating and working to get this restored as soon as we can. Until this is restored, project code browsers will show an “empty” message. We’ll update this as this is resolved. Best Regards, Chris Tsai, SourceForge.net Support