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Mach error

Apple Mach-O Linker error – Xcode 6 Beta 6

August 19, 2014 By Ravi Shankar 2 Comments

After downloading Xcode 6 beta 6, If you are receiving Apple Mach-O Linker error, Undefined symbols for architecture then try clearing the DerivedData for Xcode.

Undefined symbols for architecture x86_64:

“__TFSs26_forceBridgeFromObjectiveCU__FTPSs9AnyObject_MQ__Q_”, referenced from:

Derived data folder location

You find out the location of derived data using Xcode Preferences. Click Xcode -> Preferences.

201408191239.jpg

Click Locations tab and navigate to Derived Data section. Then click the arrow next to folder the path.

201408191241.jpg

Now delete DerivedData folder under Xcode.

201408191243.jpg

Useful link – http://stackoverflow.com/questions/25371556/swift-beta-6-confusing-linker-error-message

Filed Under: Programming, Xcode Tagged With: Mach error, Xcode, Xcode 6

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