How can I add older version of iOS SDK in Xcode 4.5

Question

I copied the iOS 5.1 SDK here:

Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs

But, I stil

Answer 1

Old SDK's for the OS and Simulator might be available from these locations using finder.

For OS

/Developer-old/Platforms/iPhoneOS.platform/Developer/SDKs

For Simulator

/Developer-old/Platforms/iPhoneSimulator.platform/Developer/SDKs

Developer-old, you would find it in device volume path.