Frameworks are 'red' in Xcode

Question

I downloaded a project developed by Apple employees ( who taught course at Stanford on iPhone application development). Strangely , the frameworks are red.

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Answer 1

Found a way to fix this automagically:

• Right click your main Xcode project file (the blue one at the top ),
• Get info,
• 'General' tab,
• At the bottom, set 'Base SDK for All configurations' to your desired one.

Done!