Re: [eclipse-clp-users] Error_Handler

Dear Shrirang,

I notice only now that the error you get gives more precise information: 
it also says what is the predicate that raises the error: call(_1933).

This means that your program executes call(X), where X is a variable. 
You cannot invoke a predicate which is a variable.

Hope this helps.

Marco

On 27/11/15 03:45, Edgaonkar, Shrirang wrote:
> Dear clp users,
>
>
>
>   I have situation where I get one solution for my goal correctly. But on backtracking when there are no more solutions, I get the following call to error_handler and subsequently the program aborts.
>
>
>
>    error_handler(4, call(_1933), eclipse, eclipse)
>
>
>
> What are the possible conditions when I get such a call to error_handler ?
>
>
>
> Thanks and Regards,
>
> Shrirang Edgaonkar
>
>
>
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-- 
Marco Gavanelli
Associate Professor
Ph.D. in Computer Science
Dept of Engineering
University of Ferrara
Tel/Fax  +39-0532-97-4833
http://docente.unife.it/marco.gavanelli