[Newbies] SBECell

john mcelhose johbert at hotmail.com
Sun Aug 15 06:26:00 UTC 2010

I'm doing the exercise on p. 36 of 'Squeak by Example'. I get the message 
 self shouldBeImplemented
MessageNotUnderstood: SBECell>>openinWorld

What's the problem? 		 	   		  
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