How to fix “containing working copy admin area is missing” in SVN?

Question

I deleted manually a directory I just added, offline, in my repository. I can\'t restore the directory.

Any attempt to do an update or a commit will fail with:

Answer 1

According to this: http://www.devcha.com/2008/03/svn-directory-svn-containing-working.html

Check-out the folder "blabla" to a different location and then copy its .svn folder back into the original "blabla".