IOS crash Unity 5.1 Vuforia4

That's the first time i build for IOS devices.
I've upgraded my unity and xcode and my mac, but when i try to build any IOS app, even start on a blank project, when unity ask to save the app, when i click the button to save, i have a massive unity crash.

View attachment 159419


Here's the crash report:

Process: Unity [1873]
Path: /Applications/Unity/Unity.app/Contents/MacOS/Unity
Identifier: com.unity3d.UnityEditor5.x
Version:...

IOS crash Unity 5.1 Vuforia4