In Google VR SDK 1.6 + Unity 5.6.xxx, Game Scene does not split when playing.

There is a problem that the screen can not be divided during the cardboard test.
I’m use versions for goolge sdk for unity 1.6 and Unity 5.6.2f1.
in emulater(unity game scene),Game Scene does not split when playing.
and console display “VRDevice cardboard not supported in Editor Mode. Please run on target device.” but, Screen is split when testing on phone.

What’s the problem?

GvrViewerMain changed from version 1.5 to GvrEditorEmulator.
Of course I added GvrEditorEmulator.
When checking with phone, two screens (cardboard screen) are displayed normally

Did you add the GvrViewerMain prefab from the sdk?