Couldn't open macosx64 OVRPlugin.bundle Error

I've created an empty project in "Mac Standalone" and I've set the Player Settings > OtherSettings > Rendering > Virtual Reality Supported to "true" (checked).

and I get the following error:

Couldn't open /Applications/Unity/Unity.app/Contents/VR/oculus/macosx64/OVRPlugin.bundle/Contents/MacOS/OVRPlugin, error: dlopen(/Applications/Unity/Unity.app/Contents/VR/oculus/macosx64/OVRPlugin.bundle/Contents/MacOS/OVRPlugin, 2): Library not loaded:...

Couldn't open macosx64 OVRPlugin.bundle Error