Unsupported compiler 'com.apple.compilers.llvm.clang.1_0' selected for architecture 'x86_64' on Xcode 7 Beta 2

compiler-errors xcode7 xcode7-beta2
Blaszard picture Blaszard · Jul 1, 2015 · Viewed 7.3k times · Source

When I incorporated a popular OAuth2 library in iOS called OAuth2Client to my iOS app which is developed on Xcode 7 Beta 2 and then tried running the simulator, the following error occurred and the simulator didn't launch.

Unsupported compiler 'com.apple.compilers.llvm.clang.1_0' selected for architecture 'x86_64'

What does this error mean? A lot of warnings (yellow triangle) followed with the error above (red octagon), such as:

warning: no rule to process file '/Users/myUsername/myAppname/Pods/NXOAuth2Client/Sources/NSData+NXOAuth2.m' of type sourcecode.c.objc for architecture x86_64

How can I deal with the these errors and run the simulator properly? Or does CocoaPods only work on environments prior to Xcode 7 Beta?

UPDATE

Later I found that this occurs on any projects I create, not only on a project using CocoaPods. The only clue that occurs to me is that when I updated my iTunes to 12.2 today and then launched my Xcode, the dialog popped up, instructing to install new command-line tools.

UPDATE 2

I just upgrade to Xcode 7 Beta 3 but the error still got me annoyed...

Answer

superZhen picture superZhen · Jul 27, 2015

I met the same issue on Xcode 7 beta 4. I have tried to clean the project for several times but with no lucky. Unbelievably, restart Xcode saved my night. You can try this.

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