Simple HMD plugin causes failure during build

Tried this with both 4.12 and 4.13. projects are bluprint.
I tried enabling the simple HMD plugin to try and use VR on IOS. It packages fine with the plug in off, but with it on, the build fails at Launch to IOS, on iOS build, and both windows builds.

In the log I get an error saying that visual studios may be installed incorrectly, and some tools are missing, then the build fails with “unknown error”. I do not get this with the plugin off.

Anyone else have this problem?

Forgot to mention I am using the First person template.