Xcode 7.3 Installation Failed | Signing failed

Hello,

after updating to Xcode 7.3 (From 7.1 i think) i got the following error when i try to run my app on the simulator:

Installation Failed

Invalid argument


and when i try to run it on my iphone i get:

Command /usr/bin/codesign failed with exit code 1


does somone know a fix for that problem ?

Xcode 7.3 Installation Failed | Signing failed
 
 
Q