PackagingResults:Error: Error Unknown Error build failed

Hi Sean I right clicked to generate files and got the message below…

Running C:/Program Files (x86)/Epic Games/4.14/Engine/Binaries/DotNET/UnrealBuildTool.exe -projectfiles -project=“D:/OLD DATA/Unreal Engine Green Heart/UE_Green_Heart 4.14/UE_Green_Heart.uproject” -game -rocket -progress
Discovering modules, targets and source code for project…
Messages while compiling D:\OLD DATA\Unreal Engine Green Heart\UE_Green_Heart 4.14\Intermediate\Build\BuildRules\UE_Green_HeartModuleRules.dll:
d:\OLD DATA\Unreal Engine Green Heart\UE_Green_Heart 4.14\Intermediate\Source\UE_Green_Heart.Target.cs(6,14) : error CS0101: The namespace ‘’ already contains a definition for ‘UE_Green_HeartTarget’
UnrealBuildTool Exception: ERROR: UnrealBuildTool encountered an error while compiling source files

I hope this helps in getting to the bottom of this.

Thanks for your help