Augmented Reality for UE4

We purchase commercial version license and use it.

Using MacOS Sierrs (version 10.12.5) and Xcode 8
I am trying to transfer the real machine to iOS with unrealengine 4.15.3.

I can not transfer because of the following error.
Can you ask me the solution?

Failed to open descriptor file ‘…/…/…/AR7Project/AR7Project.uproject’

Add a screenshot of iOS to the attached file.