Trouble Installing PhoneGap Plugin

I'm trying to install a PhoneGap plugin located here: https://github.com/phonegap/phonegap-plugins/tree/master/iPhone/MessageBox. However, I am unable to get it working. Here ar

Solution 1:

Are you waiting for the deviceready to be called in phonegap? if not then you should do that in order that the plugins and all necessary pieces have time to initialize before you call the message box