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I'm on the latest beta version of Xcode (Xcode 4.5 with iOS 6.0). I've got an xcode project for an iphone app and I want to add a Unit Test target on it. I've followed carefully the instructions given on this page but I can't run the tests. Here's the message I read in the console: 

Failed to find SDK: '6.0'  
error: failed to attach to process ID 0

The target corresponding to the main application runs perfectly well on the iPhone 6.0 simulator though.

Where can I have made a mistake?

Cœur
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pierroz
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3 Answers3

17

Xcode -> Preferences -> Locations -> Command Line Tools => Select the one matches with SDK.

EDIT:

EDIT 2: For some people, the above method works. If not, please try:

It seems that this issue was a result of switching between more than one version of SDKs, and could be solved by specifying the current SDK as the active one with a terminal command(, which requires root privilege):

$ sudo xcode-select --switch <path-to-your-current-xcode.app>
ZhangChn
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  • That also fixed it for me. Thank you! – Florian Mielke Nov 12 '12 at 17:31
  • Don't know why you put a strikethrough on your first answer (Xcode -> Preferences -> Locations -> Command Line Tools => Select the one matches with SDK.) as that was what worked for me... The xcode-select did not fix that issue. – Clafou Jan 04 '13 at 23:25
1

I found that in order to get Xcode to attach to my unit tests, I had to use LLDB, GDB did not work.

Lynn S
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0

I returned to an earlier snapshot that I had - the only change being that the compiler was set to GDB instead of LLVM - and surprisingly enough that seems to have worked perfectly.

Not sure why LLVM isn't working though.

Salman
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