4.19 build fails - UnrealBuiltTool.Rules error

I’m getting an error: The namespace “UnrealBuildTool.Rules” already contains a definition for ‘LeapMotion’

Here’s the list of red lined errors, maybe there’s yet more here of concern:

UATHelper: Packaging (Windows (64-bit)): ERROR: c:\Program Files\Epic Games\UE_4.19\Engine\Plugins\Runtime\LeapMotion\Source\LeapMotion\LeapMotion.Build.cs(7,15) : error CS0101: The namespace ‘UnrealBuildTool.Rules’ already contains a definition for ‘LeapMotion’
UATHelper: Packaging (Windows (64-bit)): ERROR: Unable to compile source files.
PackagingResults: Error: c:\Program Files\Epic Games\UE_4.19\Engine\Plugins\Runtime\LeapMotion\Source\LeapMotion\LeapMotion.Build.cs(7,15) : error CS0101: The namespace ‘UnrealBuildTool.Rules’ already contains a definition for ‘LeapMotion’
PackagingResults: Error: Unable to compile source files.
UATHelper: Packaging (Windows (64-bit)): Took 3.9888268s to run UnrealBuildTool.exe, ExitCode=5
UATHelper: Packaging (Windows (64-bit)): ERROR: Command failed (Result:5): C:\Program Files\Epic Games\UE_4.19\Engine\Binaries\DotNET\UnrealBuildTool.exe EAA_EduFishFix Win64 Development -Project=“D:\EAA_Edu 4.19\EAA_EduFishFix.uproject” “D:\EAA_Edu 4.19\EAA_EduFishFix.uproject” -NoUBTMakefiles -remoteini=“D:\EAA_Edu 4.19” -skipdeploy -noxge -generatemanif
est -NoHotReload. See logfile for details: ‘UnrealBuildTool-2019.03.13-16.28.24.txt’
UATHelper: Packaging (Windows (64-bit)): (see C:\Users\Benjy’s Boxx\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.19\UAT_Log.txt for full exception trace)
PackagingResults: Error: Command failed (Result:5): C:\Program Files\Epic Games\UE_4.19\Engine\Binaries\DotNET\UnrealBuildTool.exe EAA_EduFishFix Win64 Development -Project=“D:\EAA_Edu 4.19\EAA_EduFishFix.uproject” “D:\EAA_Edu 4.19\EAA_EduFishFix.uproject” -NoUBTMakefiles -remoteini=“D:\EAA_Edu 4.19” -skipdeploy -noxge -generatemanifest -NoHotReload. See l
ogfile for details: ‘UnrealBuildTool-2019.03.13-16.28.24.txt’
UATHelper: Packaging (Windows (64-bit)): AutomationTool exiting with ExitCode=5 (5)
UATHelper: Packaging (Windows (64-bit)): BUILD FAILED
PackagingResults: Error: Unknown Error

Thanks for advice!