When installing Facebook Connect, I receive the following error:

"Application setup failed. Please check your App ID and Application Secret."

I have created an app, and entered the correct app id and secret dozens of times. I have also deleted and recreated the app over and over. Yes, I have uninstalled every trace of earlier versions of the plugin and started from scratch and still I get this same message! I've had this plugin working on an earlier version of oxwall, so I am totally baffled! ANY help would be greatly appreciated!!!!