iOS: Watch Kit paired device unavailable for development

Question

I can\'t run my Apple Watch application in XCode. My phone+watch is listed as a \"Unavailable Device\" and says \"paired device unavailable for development\". When I try to laun

Answer 1

Deleting the 'famous' XCODE Derived Data folder did it for me.

Steps for newbies:

1. Close XCODE.
2. Delete the Derived Data folder, to find it's location go in XCODE to upper menu: XCODE -> Preferences -> Locations: Here click on the Derived Data arrow.
3. Reopen XCODE.

Tested on XCODE8.0.