Trouble when using plOpenGL

ERROR: /Users/xgm/Desktop/movelight.pl:1:
	/Users/xgm/Desktop/movelight.pl:1: Initialization goal raised exception:
	'$open_shared_object'/3: dlopen(plOpenGL, 1): image not found

Hello everyone, I’m newbie in prolog.
When I using plOpenGL, it happend to me the error above, I cannot fit this. What can I do ?
Thanks