"MSBUILD : error MSB1001: Unknown switch" error, can't package any project with 4.27plus on Mac

Development Platform & Builds
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Hello. I am trying to get 4.27plus version of the engine running on my mac.

  1. I followed the Mac instructions here to:
  2. clone the repo
  3. run setup.command
  4. run generateProjectfiles.command
  5. open the xcworkspace
  6. Build ShaderCompilerWorker
  7. Build UE4
  8. Run
  9. editor opens
  10. I make a new empty project.
  11. Try to build for mac.
  12. Get this error.
    UATHelper: Packaging (Mac): Running AutomationTool...
    UATHelper: Packaging (Mac): Found mono via known Mono.framework path
    UATHelper: Packaging (Mac): Running system mono/msbuild, version: Mono JIT compiler version 5.16.0.221 (2018-06/b63e5378e38 Mon Nov 19 18:08:09 EST 2018)
    UATHelper: Packaging (Mac): msbuild Source/Programs/AutomationTool/AutomationTool.csproj /p:Configuration=Development /p:Platform=AnyCPU /verbosity:quiet /nologo /p:NoWarn=1591 /property:AutomationToolProjectOnly=true /p:TargetFrameworkProfile=
    LogSlate: Took 0.000422 seconds to synchronously load lazily loaded font '../../../Engine/Content/Slate/Fonts/DroidSansMono.ttf' (77K)
    UATHelper: Packaging (Mac): Start UAT: mono AutomationTool.exe -ScriptsForProject=/Documents/Unreal Projects/MyProject5/MyProject5.uproject BuildCookRun -nocompileeditor -nop4 -project=/Documents/Unreal Projects/MyProject5/MyProject5.uproject -cook -stage -archive -archivedirectory=/Documents/untitled folder -p
    ackage -ue4exe=/Documents/GitHub/UnrealEngine/Engine/Binaries/Mac/UE4Editor.app/Contents/MacOS/UE4Editor -compressed -ddc=DerivedDataBackendGraph -pak -prereqs -nodebuginfo -targetplatform=Mac -build -target=MyProject5 -clientconfig=Shipping -utf8output
    UATHelper: Packaging (Mac): Parsing command line: -ScriptsForProject="/Documents/Unreal Projects/MyProject5/MyProject5.uproject" BuildCookRun -nocompileeditor -nop4 -project="/Documents/Unreal Projects/MyProject5/MyProject5.uproject" -cook -stage -archive -archivedirectory="/Documents/untitled folder" -package 
    -ue4exe=/Documents/GitHub/UnrealEngine/Engine/Binaries/Mac/UE4Editor.app/Contents/MacOS/UE4Editor -compressed -ddc=DerivedDataBackendGraph -pak -prereqs -nodebuginfo -targetplatform=Mac -build -target=MyProject5 -clientconfig=Shipping -utf8output -compile
    UATHelper: Packaging (Mac): Dependencies are out of date. Compiling scripts....
    UATHelper: Packaging (Mac):   MSBUILD : error MSB1001: Unknown switch.
    UATHelper: Packaging (Mac):   Switch: /Documents/GitHub/UnrealEngine/Engine/Programs/AutomationTool/Saved/UATTempProj.proj
    UATHelper: Packaging (Mac):   
    UATHelper: Packaging (Mac):   For switch syntax, type "MSBuild /help"
    UATHelper: Packaging (Mac): Took 0.201629s to run msbuild, ExitCode=1
    UATHelper: Packaging (Mac): ERROR: Failed to build "/Documents/GitHub/UnrealEngine/Engine/Programs/AutomationTool/Saved/UATTempProj.proj":
    UATHelper: Packaging (Mac):        MSBUILD : error MSB1001: Unknown switch.
    UATHelper: Packaging (Mac):        Switch: /Documents/GitHub/UnrealEngine/Engine/Programs/AutomationTool/Saved/UATTempProj.proj
    UATHelper: Packaging (Mac):        
    UATHelper: Packaging (Mac):        For switch syntax, type "MSBuild /help"
    UATHelper: Packaging (Mac):        
    UATHelper: Packaging (Mac):        (see /Library/Logs/Unreal Engine/LocalBuildLogs/Log.txt for full exception trace)
    PackagingResults: Error: Failed to build "/Documents/GitHub/UnrealEngine/Engine/Programs/AutomationTool/Saved/UATTempProj.proj":
    UATHelper: Packaging (Mac): AutomationTool exiting with ExitCode=1 (Error_Unknown)
    UATHelper: Packaging (Mac): RunUAT ERROR: AutomationTool was unable to run successfully.
    PackagingResults: Error: AutomationTool was unable to run successfully.
    PackagingResults: Error: Unknown Error

system details:

— OS —

ProductName: macOS

ProductVersion: 13.6

BuildVersion: 22G120

— Xcode—

Xcode 14.1

Build version 14B47b