Build & Run doesn't finish

Hello!

I'm trying to build and run an game in order to export it from Unity to xCode.

My code is on C# and when I use the button "Build & Run" it starts and goes on until he says "Build & Install iPhone player". It just hangs and I have to restart Unity in order to try again.

I've seen this error a lot arround the internet (it may be repeated in this forum somewhere), but can't find the answer that solves it (for me).

I've edited the Unity's "Info.plist" (adding a string from the xCode's "Info.plist") but didn't work.

I've changed some of the values on "Build Settings", but still hanging.

I can just build the project, and open it manually from xCode, things seems to be fine that way. But it has to be somehow I can use the "Build & Run" button once again (it was much faster).

Maybe the problem is compatibility, maybe I have to reinstall Unity, someone has to had solved it somehow sometime.

I was able to do all this things without no problem in the past, maybe it was an update or something who made this bug appear.

I'm using a MacBook Pro with macOS Sierra ( 10.12.2 ), Unity 5.4.1f1 and xCode 8,2,1

Regards & Happy Coding! Cya!