Xcode process launch failed: Security

Question

I have been developing an app for 1 or 2 weeks now and just yesterday I have updated my iPhone 5S to the iOS 8 GM. Everything worked fine and I could test on my device as we

Answer 1

Update for iOS9.2.1 and Xcode 7.2.1

If you get this error when building to a device in Xcode:

On your device, tap the app icon that would have just been added from your attempt at building the app and you should see this:

Next, on your device, go to Settings --> General --> Device Management, and you will see this page:

Select the profile you are using with Xcode, and you should see this page:

Click Trust "username@email.com" then click Trust on the next popup.

Go back to Xcode and re-run your project and it should build the app to your device.