"The item can’t be moved to the Trash because it's open."
One of my applications (which happens to be a game) can’t be moved to the Trash because it’s "open". When I right-click on the app in the dock, and click Quit, nothing happens. I have tried to do a Forceful quit, but no matter what I do - the application won't close and cannot be deleted. How do I override this?!?! It is a large file (9.22GB) and really needs to be removed to make space on my hard drive. Please help...
iMac, OS X Mountain Lion (10.8.2)