MacBook Pro El Capitan (10.11.6) here. I am trying to install Xcode 9 so that I can play with ARKit . From the Apple developer site, the only version 9 I can find is Xcode_9_beta_6.xip(please correct me if I am wrong!), So I download it:
Then I extract and run the XIP file:
But this operation failed due to this strange error that Google really does not help me (in general):
Any ideas on what's going on here?
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