Trying to package for Windows on Unreal 4.21 on the Oculus 1.34 build not detecting Visual Studios

Not sure the cause of this problem and it may not be related to the Oculus Build of Unreal but I have Visual Studios 2017 and 2015 installed with the proper Unreal workloads installed and yet when I try to package a project for windows Unreal sends a message that Visual Studios doesn't appear to be installed.

Does anyone know what the cause of this problem may be? Checking Unreal Forums as well at the moment too.