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Cannot load underlying module for 'UIKit' error


Xcode cannot load UIKit module. I got this error message:

// import UIKit - Cannot load underlying module for 'UIKit' 

I downloaded this GitHub source project: ARMuseum.

My xcode version:

Version 9.4 beta 

Solution

  • In Xcode 9.4.1 in macOS High Sierra 10.13.6 everything works fine.

    It's definitely a bug of Xcode 9.4 beta.

    So, install the latest public version of Xcode to get rid of this bug.

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