Hello,
I’m new with Unreal, and when I learn using C++ in Unreal I get error same like this:
The error message I get:
Determining max actions to execute in parallel (6 physical cores, 6 logical cores)
Executing up to 6 processes, one per physical core
Requested 1.5 GB memory per action, 7.49 GB available: limiting max parallel actions to 4
Using Parallel executor to run 3 action(s)
------ Building 3 action(s) started ------
[1/3] Compile [x64] ObstacleAssault.init.gen.cpp
c1xx: error C3859: Failed to create virtual memory for PCH
c1xx: note: the system returned code 1455: The paging file is too small for this operation to complete.
c1xx: note: please visit Precompiled Header (PCH) issues and recommendations - C++ Team Blog for more details
c1xx: fatal error C1076: compiler limit: internal heap limit reached
[2/3] Compile [x64] MovingPlatform.gen.cpp
[3/3] Compile [x64] MovingPlatform.cpp
Total time in Parallel executor: 0.56 seconds
Total execution time: 3.09 seconds
Build failed.
From the thread and search in internet, suggest to use (not working for me - UE5.4):
<?xml version="1.0" encoding="utf-8" ?>
<Configuration xmlns="https://www.unrealengine.com/BuildConfiguration">
<BuildConfiguration>
</BuildConfiguration>
<LocalExecutor>
<MaxProcessorCount>12</MaxProcessorCount>
</LocalExecutor>
<ParallelExecutor>
<MaxProcessorCount>12</MaxProcessorCount>
</ParallelExecutor>
</Configuration>
But I find just use “MaxParallelActions” and it work.
<?xml version="1.0" encoding="utf-8" ?>
<Configuration xmlns="https://www.unrealengine.com/BuildConfiguration">
<BuildConfiguration>
<MaxParallelActions>2</MaxParallelActions>
</BuildConfiguration>
</Configuration>
The question is, when I try to change config it did not work and not detect if BuildConfiguration.xml file in these location:
H:\work\workspace\unreal\ObstacleAssault\Saved\UnrealBuildTool
D:\Applications\Epic Games\UE_5.4\Engine\Saved\UnrealBuildTool
But Unreal 5.4 do read and detect BuildConfiguration.xml in
<USER>/AppData/Roaming/Unreal Engine/UnrealBuildTool/BuildConfiguration.xml
Why It not read project based BuildConfiguration.xml? Also “MaxProcessorCount” in “LocalExecutor” and “ParallelExecutor” section is not working. What I do wrong?
Documentation say (and I assume it detect and read in order to override config):
In addition to being added to the generated Unreal Engine (UE) project under the
Config/UnrealBuildToolfolder, Unreal Build Tool (UBT) reads settings from XML config files in the following locations on Windows:
Engine/Saved/UnrealBuildTool/BuildConfiguration.xml<USER>/AppData/Roaming/Unreal Engine/UnrealBuildTool/BuildConfiguration.xmlMy Documents/Unreal Engine/UnrealBuildTool/BuildConfiguration.xml<PROJECT_DIRECTORY>/Saved/UnrealBuildTool/BuildConfiguration.xml
Thanks.