Signing product stage while building app in xCode 6 takes too long

Question

Everything was working perfectly, I didn't even notice that there is signing product stage while building app because it was so quick.

I didn't change anything and suddenly my app building time increased. It is stuck at signing product stage for about 5 minutes and after that period app builds normally.

Project is created with xCode 5.1.1 and now I'm using xCode 6.0.1. It was running well for some time after switching to new version of xCode.

Does anyone know why signing product stage time increased?

Answer 1

I deleted xCode derived data folder and now everything is running smoothly