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Error in message mapping

Hi all,

I am trying out a simple exercise on message mapping.

However when i try to use not exist, it prompts me for the below mentioned error.

[http://img338.imageshack.us/my.php?image=errorbc7.jpg]

It works for "exists" but i would like to know why not exist does not work in this situation.

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Appreciate any comments.

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1 Answer

  • Jan 11, 2008 at 01:16 AM

    Hi,

    On seeing the image I couldn't able to understand what u want to achieve. NOT will give you the negation of the input provided. NOT will get only True or False as input.

    EXISTS function will give the output as True or false based on the node. As per your example, if ERNAM present then it will give True else False.

    Now tell, what u want to achieve.

    raj.

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