I am enrolled as an iOS developer, and so far I have been able to download all documentation libraries. Starting with XCode 4.1, I can't download the Mac OS X 10.7 Core Library documentation. The error returned from Xcode is: Other libraries seem to not have this problem. Do I need to be registered as a Mac OS X developer to download the documentation for Lion? Is there any new policy changes in this matter that I am possibly unaware of?