Thanks for the detail about the profile folder being moved. I spent hours trying to get IOS development working (my first trip down this road with Delphi).. Solution I used was to create a symlink to the new folder from terminal:
cd ~/Library/
mkdir MobileDevice
cd MobileDevice
ln -s "../Developer/Xcode/UserData/Provisioning Profiles" "Provisioning Profiles"
Hopefully this helps the next person.. got an app running on iOS...