GearVR Sample Framework wont Build

When I import the GearVR Sample Framework the project wont build I get the error:

ArgumentException: The Assembly UnityEditor is referenced by Assembly-CSharp ('Library/ScriptAssemblies/Assembly-CSharp.dll'). But the dll is not allowed to be included or could not be found.
UnityEditor.AssemblyHelper.AddReferencedAssembliesRecurse (System.String assemblyPath, System.Collections.Generic.List`1 alreadyFoundAssemblies, System.String[] allAssemblyPaths, System.String[] foldersToSearch,...

GearVR Sample Framework wont Build