UE 5.4.2 Making Installed Build from Source fails

Development Platform & Builds
1

Hello. I am trying to create a UE5.4.2 installed build from source for Windows. After compilation I receive the message:

UnrealBuildTool failed. See log for more details. (E:\UnrealEngine-5.4.2-release\Engine\Programs\AutomationTool\Saved\Logs\UBA-ShaderCompileWorker-Win64-Development.txt)

Here is the log file in question:
UBA-ShaderCompileWorker-Win64-Development.txt (11.8 MB)

During compilation I am getting the following errors:

[16308/23961] Compile [x64] EpicWebHelperRemoteMethodHandler.cpp
E:\UnrealEngine-5.4.2-release\Engine\Source\Programs\EpicWebHelper\Private\EpicWebHelperRemoteMethodHandler.h(58): error C3646: 'OVERRIDE': unknown override specifier
E:\UnrealEngine-5.4.2-release\Engine\Source\Programs\EpicWebHelper\Private\EpicWebHelperRemoteMethodHandler.h(80): error C3646: 'OVERRIDE': unknown override specifier

To package the engine I am using the following command:

call Engine\Build\BatchFiles\RunUAT.bat BuildGraph -target="Make Installed Build Win64" -script="Engine/Build/InstalledEngineBuild.xml" -set:WithWin64=true -set:WithMac=false -set:WithAndroid=false -set:WithIOS=false -set:WithTVOS=false -set:WithLinux=false -set:WithLinuxArm64=false -set:WithClient=false -set:WithServer=false -set:WithDDC=false -set:HostPlatformDDCOnly=false -set:WithFullDebugInfo=false -set:SignExecutables=false

I have tried building from a clean project downloaded directly from GitHub without engine modifications. Additionally, I’ve tried building from the shortest possible directory, putting the project at the root of my E:/ drive, and still get the same result.

Not sure why the build is failing here. My Visual Studio 2022 is up to date. I have the various required C++ build tool installed through VS Installer.

Any insight would be appreciated.

1 Like
3

So it seems as though one solution is to modify the engine source file:
EpicWebHelperRemoteMethodHandler.h

to add #define OVERRIDE override at line 14, like so:

image
image628×588 54.1 KB

Doing this allows me to complete my packaged build. Not sure why, considering that is a file that has not been modified in the source code for 2 years… So it must be something that changed external to UE5.

I was tipped off to doing this by studying this webpage, which notes a similar problem the user experienced back on UE 4.26

Anyone know why this modification would be required now?

1 Like
4

Thanks for it.

5

why dont you build from VS directly?