I have the same issue. Please help!
Error MSB3073 The command ““C:\Program Files (x86)\Epic Games\4.10\Engine\Build\BatchFiles\Build.bat” SLV Win64 Development “D:\Projects\UnrealHospital\sources\SLV_Template\SLV.uproject” -rocket -waitmutex -2015” exited with code -1. SLV C:\Program Files (x86)\MSBuild\Microsoft.Cpp\v4.0\V140\Microsoft.MakeFile.Targets 37