How do I build the UE4Editor.app executable on Mac?

Development Platform & Builds
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1

Source-built 4.8.1-release refuses to open my project (though it works fine on Windows). All I need to open the project for is packaging so I figured I would try from the command line.

I’m running this command:

/RunUAT.sh BuildCookRun -project="/Users/nicholashughes/Documents/Unreal Projects/KingOfKalimpong/KingOfKalimpong.uproject" -noP4 -platform=Mac -clientconfig=Development -serverconfig=Development -cook -allmaps -NoCompile -stage -pak -archive -archivedirectory="/Users/nicholashughes/Desktop/kalimpong-alpha-builds/0.8.5.1/"

I get this error:

BuildCommand.Execute: ERROR: BUILD FAILED Program.Main: ERROR: AutomationTool terminated with exception: Program.Main: ERROR: Exception in AutomationScripts.Automation: Missing /Users/nicholashughes/code/piinecone/UnrealEngine/Engine/Binaries/Mac/UE4Editor.app/Contents/MacOS/UE4Editor executable. Needs to be built first. Stacktrace: at Project.Cook (AutomationTool.ProjectParams Params) [0x00000] in :0 at BuildCookRun.DoBuildCookRun (AutomationTool.ProjectParams Params) [0x00000] in :0 at BuildCookRun.ExecuteBuild () [0x00000] in :0 at BuildCommand.Execute () [0x00000] in :0 Program.Main: ERROR: Missing /Users/nicholashughes/code/piinecone/UnrealEngine/Engine/Binaries/Mac/UE4Editor.app/Contents/MacOS/UE4Editor executable. Needs to be built first.

I can see that there’s a UE4Editor-Mac-Debug, which fits the scheme definition. How do I generate the UE4Editor that the RunUAT command is looking for?

I need to use the source version because client builds packaged from the binary version of the editor can’t connect to dedicated servers built from the source version of the editor.

2

Perhaps it is better to just set the ue4exe flag to UE4Editor-Mac-Debug for that command?

3

In my case, the solution was to set the ue4exe flag to UE4Editor-Mac-Debug, so the RunUAT command looked like this:

./RunUAT.command -ue4exe=UE4Editor-Mac-Debug

I was able to successfully package from the command line. I’ll mark this as correct for now, although I’m still not sure if there should be a UE4Editor.app dir and executable or if the -Mac-Debug is right.