Exit code 138 when packaging a UE5.5.4 app for iOS with cesium plugin

[Kevin_Ring]

The Exit Code 138 can most likely be fixed by disabling the Unreal Build Accelerator and limiting the number of simultaneous compilations to two. I believe the problem is that the Mac is running out of memory. You can find instructions for doing this here:

Building Cesium-Unreal for VisionOS

Hi @dagillespie, I don’t have any ready-made solutions for any of this, but I may be able to help you make some progress, at least. First, that Exited with code: 139 error. I also saw that on my corporate-managed MBP when packaging for iOS. I spent awhile trying to debug it, and I still don’t know exactly why it happens. UnrealBuildTool seems to simply be crashing for no clear reason. But I was able to work around it by disabling the Unreal Build Accelerator. Create ~/Library/Application Supp…