I have created a project from 0, import steamVR and followed the VRTK asset package, but at the time of playing I get the following error.
PlayerSettings Validation: Requested build target group (27) doesn't exist; #define symbols for scripting won't be added. UnityEditor.PlayerSettings:SetScriptingDefineSymbolsForGroup(BuildTargetGroup, String) VRTK.VRTK_Defines:EnsureVersionSymbolIsSet() (at Assets/VRTK/Scripts/Internal/VRTK_Defines.cs:60) UnityEditor.EditorAssemblies:ProcessInitializeOnLoadAttributes()