Shader compiler crash

Hey guys,

We’re trying to open our UE4 project on a new computer but the shader compiler keeps crashing. However the project runs okay on other machines.

The line in the log is
Fatal error: [File:D:\BuildFarm\buildmachine_++depot+UE4-Releases+4.10\Engine\Source\Runtime\Core\Private\GenericPlatform\GenericPlatformMemory.cpp] [Line: 91]
Ran out of memory allocating 87326887152 bytes with alignment 0

We’re on 4.10.3 - any suggestions are highly appreciated!

Hi Samuel,

Looking at the error posted from the log above, you have run out of memory while it was trying to allocate ~87gb worth of data.

To be clear, this isn’t crashing the editor, but only bringing up the map check window with the Lightmass crash, correct?

If this is crashing the entire editor you should have a crash reporter window come up with the full call stack, along with your Epic/Machine IDs. If so, please copy and post this here in a text file.

If this is only happening when you build lighting and you get the ran out of memory issue, this is not a bug. Building Lighting can be a heavy with resources and if it’s a large project/game level that you’re building for you’re likely to run into issues like this.

Please let me know which scenerio fits this, along with any repro steps, the logs from the project, and call-stack if you’re getting the crash.

Thank you!