Unreal Engine 4.5 not compile in Xcode 6 OS X Yosemite

I’m try compile UE4.5 on my Mac OS X 10.10 using Xcode 6.1, but compiling not END! I’m waited 3 hours, but it not ended. I’m also see the UE4Editor-Mac-Debug in Binaries/Mac, but its size 40.2 MB. No errors. Why? The UE4 not support OS X 10.10 and Xcode 6? Before I’m updated my MacBook to Yosemite (Mavericks 10.9.5), and my Xcode (5.1.1) UE4.4 compiled successfully.

Hi. I would rather suspect the new Clang in Xcode 6.1 to be causing some issues on your Mac :confused: What Mac is it, how many CPU cores and how much memory does it have? It sounds like a problem with not enough memory to run one instance of Clang compiler per CPU core.

We’re using Yosemite on many Macs at Epic (and we’ve been testing with Yosemite pre-release versions) and as far as I know, we didn’t run into this problem after update.