Project files could not be generated. Log output:
Running E:/UnrealEngine-4.3.0-release/Engine/Binaries/DotNET/UnrealBuildTool.exe -projectfiles -project="E:/UnrealEngine-4.3.0-release/Samples/VehicleGame 4.3/data 4.3/VehicleGame.uproject" -game -engine -progress
Discovering modules, targets and source code for game...
UnrealBuildTool Exception: ERROR: Windows SDK v8.1 must be installed in order to build this target.