[Rubycocoa-talk] Can't get Objective-C method signature in Leopard

[Rod S. <rsc...@xm...>]

I have the following Ruby code in my RubyCocoa app (in which I have  
mostly Objective-C with some Ruby).

class BackpackReminder
	def CSS_class
		date = NSDateToRubyDateTime(self.date)
		now = DateTime.now
		days_from_now = date.jd - now.jd
		if days_from_now <= 30 then
			"day#{days_from_now}"
		else
			"month#{self.months_from_now}"
		end
	end
end

BackpackReminder is an Objective-C class, so I am reopening this class  
and adding the CSS_Class method. This worked fine in Tiger. When I run  
the app I get the following:

11/3/07 12:55:52 PM PackRat[1109] PageGenerator#generateHTML:  
OSX::OCMessageSendException: Can't get Objective-C method signature  
for selector 'CSS:class' of receiver  
#<OSX::BackpackReminder_BackpackReminder_:0x265a5c  
class='BackpackReminder' id=0x6115b0>
11/3/07 12:55:52 PM PackRat[1109] Exception raised during posting of  
notification.  Ignored.  exception: 'Can't get Objective-C method  
signature for selector 'CSS:class' of receiver  
#<OSX::BackpackReminder_BackpackReminder_:0x265a5c  
class='BackpackReminder' id=0x6115b0>'  invoked observer method: '*** - 
[PackRatAppDelegate tableViewSelectionDidChange:]'  observer:  
0x6f3dd0  notification name: 'NSTableViewSelectionDidChangeNotification'

If I rename the method and remove the underscore and rename it  
something like CSSClass, I get the same message (with the method name  
changed of course). Has something changed in the Leopard version of  
RubyCocoa that prevents you from reopening classes and adding methods?

Rod Schmidt