Horde Unable to find RunUAT.bat in our perforce stream

Development Pipeline & Plugins
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1

Since our engine folder is in a subdirectory of our perforce stream, Horde is unable to find RunUAT.bat.

I have tried editing the template as suggested by your Unreal engine AI support by setting the engine_root environment variable, it did not help. What is the proper way to configure the engine dir in horde if it’s located in a subdirectory of the perforce stream?

       "env": {
               "UE_ENGINE_DIR": "%uebp_LOCAL_ROOT%\\UE5\\Engine"
           },
           "arguments":
           [
               "-EngineDir=\"%UE_ENGINE_DIR%\"",
               "-Script=\"%UE_ENGINE_DIR%\\Build\\Graph\\Examples\\Parameters.xml\"",
               "-Target=\"Print Parameters\"",
               "-HordeExport=\"%UE_ENGINE_DIR%\\Saved\\Horde\\Exported.json\""
           ],
2

Steps to Reproduce

install and Configure Unreal Engine Horde for Build Automation for a perforce stream that has the engine in a subdirectory. (our engine folder is at depot\main\UE5\Engine\…)

execute a test buildgraph job i.e. Parameter Demo from the Horde Server UI

We see the following in the log:

Setting env var: uebp_BuildRoot_Escaped=++depot+main
Setting env var: uebp_BuildRoot_P4=//depot/main
Setting env var: uebp_CL=27846
Setting env var: uebp_CLIENT=Horde+PIP-WKS-001+HOOL
Setting env var: uebp_CLIENT_ROOT=//Horde+PIP-WKS-001+HOOL
Setting env var: uebp_CodeCL=27799
Setting env var: uebp_LOCAL_ROOT=D:\ProgramData\EpicGames\Horde\SandBox\HOOL\Sync
Setting env var: uebp_LogFolder=D:\ProgramData\EpicGames\Horde\SandBox\HOOL\Sync\Engine\Programs\AutomationTool\Saved\Logs
Setting env var: uebp_PORT=ssl:amgi.perforce.assembla.com:1667
Setting env var: uebp_USER=OptimusPrime
Executing C:\Windows\system32\cmd.exe /C ""D:\ProgramData\EpicGames\Horde\SandBox\HOOL\Sync\Engine\Build\BatchFiles\RunUAT.bat" BuildGraph -Script="\"%UE_ENGINE_DIR%\Build\Graph\Examples\Parameters.xml\"" -HordeExport=D:\ProgramData\EpicGames\Horde\SandBox\HOOL\Sync\Engine\Saved\Horde\Exported.json -ListOnly -Target="\"Print Parameters\"" -EngineDir="\"%UE_ENGINE_DIR%\"" -HordeExport="\"%UE_ENGINE_DIR%\Saved\Horde\Exported.json\"" -set:TextParameter=this-is-text-parameter-8-from-Richard -set:ListParameter=Option2 -set:MultiListOption1=true -set:MultiListOption3=true -set:TagPickerOption1=true -set:TagPickerOption3=true -set:BoolParameter=false"
The system cannot find the path specified.
3

Hi Richard,

There has been a recent fix to support the Unreal root hierarchy being in a subfolder of the workspace root.

See https://github.com/EpicGames/UnrealEngine/commit/2df64d521aa5db17e9caf524e2af61735d40370c

Unfortunately this hasn’t made it into a release yet, so if you want the fix straight away you will need to grab this change and rebuild Horde.

Hope this helps.

4

Hey Raymond,

Thanks for the reply! Not exactly the answer I was hoping for, but at least now I know what’s going on. I guess I’ll be rebuilding Horde this week.

Thanks again!