问题
There seem to be some problems with the new build system in Xcode 10. How do I switch to the old (legacy) build system?
回答1:
You can switch back to the previous (legacy) build system from the menu by
File > Workspace Settings... (or Project Settings...):
This brings up a dialog where you can change the Build System to Legacy Build System:
Hat tip to this answer. There's also a video here.
来源：https://stackoverflow.com/questions/53050108/xcode-10-how-to-switch-to-legacy-build-system