iOS simulator: could not hardlink copy. Wrong path in my filesystem?

I believe the issue is exacerbated if you change your app's Info.plist from one build to the next (such as revving CFBundleVersion or similar). If you do that, you should delete the app from the simulator between each launch (either via SpringBoard or using simctl) or just erase the sim device.

This issue should be addressed in recent iOS Simulator 8.2 betas that are in Xcode 6.2 betas. I think it was addressed in either beta2 or beta3, but I can't recall for certain.

I faced this error while leaving Build field blank using only Version on General tab. The error has gone after setting a build value and reinstalling the app.