Vive Controller Compile Issues 4.22.3

Having a bit of difficulty getting this up and running, can anyone provide support on why the out of the box VR project wouldnt work appropriately with Vive?

The main issue is, is the teleport function is not working as there button references are not working, this is a bit out of my league as a first time vive user.

The Compiler warning error references and unknown axis and unknown actor,

any help would be appreciated.