Since I have updated to XCode 7.3.1, I'm not able to run my project because it hangs on the "Copying Swift standard libraries" step (both from IDE and command line).
It also crashes if I try to open the project configuration file or if I create a new Swift project.
Does anyone have idea why this is happening?
I'm running XCode on Mac mini (late 2012) with OSX 10.11.6
SOLVED
Finally solved reinstalling XCode and SDK.
Thank you all for the answers.
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