Basically I have to repo on the same server:
svn://repo/foo
-> checked out to d:\foo
svn://repo/bar
-> d:\foo has an svn:external property set to check this out into d:\foo\bar
When an "svn:update" or a new "svn:checkout" this is gist of the error:
Command - Update
Updated - D:\foo
External - D:\foo\bar
External failed - D:\foo\bar
Error - d:\foo\bar is already locked via d:\foo
After I "clean" or manually release the lock, the problem still persists.
Any insights would be greatly appreciated. Thanks!
Update:
Attila nailed it in the comment. I had "foo/bar" existing in the repository.
For future reference - when using SVN:External property, SVN will create the destination folder for the external reference.