Adding a framework is managed through the editor for the project:
a) Select the project (which contains the target you want to add the framework to), either from the Project Navigator or via the Jump Bar
b) In the source list on the left side of the project editor, select the target
c) Across the top of the target editor area, on the right, will be a few tabs: select the third one, "Build Phases"
d) From the list of phases presented, disclose the "Link Binaries With Libraries" phase (the last one, normally)
e) Click the plus sign in the lower-left of the phase
This will bring down a sheet of the available libraries and frameworks to select from. Then simply select the framework(s) you wish to add, and click the "Add" button.
이렇게 복잡하게 애플이 하게 했을리가 없는데... 좀 이상하긴 합니다.