Without seeing your setup, it sounds like you are missing a Motion Controller input component. You can read more about how to setup Motion Controllers using the following link.
my project with steamVP has a error:“Could not find a function named “GetHandPositionAndOrientation” in ‘VivePlayerPawn’”.
But,I sure i have selected the SteamVR and HMD sections.
You’ll need to add two Vive motion controller components to your pawn, then set one to left and the other to right in the details panel and probably add a mesh to each so they can be seen