Custom build ue4

[wukakuki]

I am using the Engine source from branch promoted. I have successfully run via Terminal:

./Setup.command

and

./GenerateProjectFiles.command

I am on a MacBook Pro with Retina running macOS 10.12 with Xcode version 8.0 Beta. Because of ue4.12 cannot launch, I want to build it from source. And Successfully build with ShaderCompileWorker for My Mac selecting. But I failed to build with UE4 for My Mac Selecting.
I am getting the following error during build:
95317-

[anonymous_user_2b03d27c]

Hey wukakuki-

Where you set the UE4 project in Xcode, can you use the arrow to scroll to the bottom and check Edit Scheme and check what the Build Configuration is set to? If it’s not set to Development Editor, please try setting it and then build again. If you’re still unable to build, you may want to try running Setup.command and GenerateProjectFiles.command from the Finder location and then build in Xcode again.

Cheers