I am trying to get Xcode 4 working with my svn repository. I type in the svn address, which it says is reachable, but when I try to check out, it comes up with "The server 'svn.testbedapp.com' requires a client certificate." (it doesn't provide the option to supply the certificate) and then it shows "Checking out 'ProjectName'" indefinitely with s pinning wheel.
Any ideas how I supply the certificate or get it checking anything out?
It's a known issue.
Open terminal, type
svn ls <your repository address>
confirm certificates, check login/pass. After that repo will work fine in xcode.