2013 Subversion Change
In April 2013, SourceForge began migrating projects to a different hosting system. This upgrade process forces the subversion (svn) url to change for our various projects.
In order to continue using subversion following this change, you will need to use the 'svn switch' command to point your source tree at the new location.
For example, if you have the EDK II tree checked out using the old url:
You will need to switch to this url:
In this case, in your edk-fat-driver tree, you would run this command:
svn switch --relocate \ https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2 \ https://svn.code.sf.net/p/edk2/code/trunk/edk2
SourceForge has more documentation at this page.
If you are using git-svn, then these links may help with changing your svn url: