[Rubycocoa-talk] undefined method `%' for nil class

[Dave B. <dav...@3d...>]

I occasionally get this error:

/Library/Frameworks/RubyCocoa.framework/Versions/A/Resources/ruby/osx/ 
objc/oc_wrapper.rb:80:in `NSApplicationMain': NSApplicationMain -  
RBException_NoMethodError - undefined method `%' for nil:NilClass  
(OSX::OCException)
	from /Users/dave/Chips/DES/mediaUI/build/Development/tui.app/ 
Contents/Resources/rb_main.rb:22

I haven't been able to reproduce it reliably but if you look in the  
line in question it should be impossible to get this error as far as  
I can see:


79:	m_args.each_with_index do |val, index|
80:	   if (index % 2) == 0 then                             <<<<  
error on this line
81:	       args.push(val)
82:	   else
83:	       mname += "_#{val.to_s}"
84:	    end
85:	end


unless the stack is getting corrupted or something.

dave 2% ruby -v
ruby 1.8.3 (2005-09-21) [powerpc-darwin8.2.2]
on Tiger 10.4.3
with rubycocoa version
VERSION = "0.4.2"
STAGE = ""
RELEASE_DATE = "2005-11-10"


I am not doing anything fancy with rubycocoa - some simple drawing to  
the screen (fonts, images and filled rectangles) and handling  
keyboard events.

Does this ring any bells with anyone.  I will try to find a way of  
reproducing the problem reliably.

Dave.