thanks...its working now......
friedman_hill ernest j wrote: > > I hope the error message makes it clear that at the line where you're > calling "assert", there is no variable named ?pn which is in > scope. The only variable ?pn is defined inside a "not" CE, and > variables defined inside a "not" are not available outside of that > "not". Think about it: what this line says is that if there is not an > order for some part number, and that part number (which doesn't exist) > is not an ipod nano, then place such an order. But this matches not only > the existing ipod nano product, but all possible ipod nano products -- > i.e., any value for ?pn would satisfy this rule. Since there are an > infinite number of possible values, this rule doesn't make > sense. Instead, you need to move the ipod nano Product pattern up to > the top of the rule, outside of the "not", so that the rule specifies > that it's looking for the one concrete value of ?pn that makes sense. > > I think vsingh wrote: > [Charset utf-8 unsupported, filtering to ASCII...] >> >> Pls help me debug this error... >> >> >> Jess> (defrule recommendipodnano (object(is-a Customer)(customer-id ?id)) >> (not (and (object(is-a SalesOrder)(OrderNumber ?o)(customer-id ?id)) >> (object(is-a LineItem)(OrderNumber ?o)(partnumber ?pn)) >> (object(is-a Product)(partnumber ?pn)(name ___ipod nano___)))) => >> (assert >> (object(is-a Recommend)(OrderNumber ?o)(partnumber ?pn))) >> ) >> TRUE >> Jess> (run) >> Jess reported an error in routine Context.getVariable >> while executing (assert (MAIN::object (is-a Recommend) (is-a-name nil) >> (OBJECT nil) (rdfs:label ) (owl:versionInfo ) (rdfs:comment ) >> (rdfs:member ) >> (:NAME ) (rdfs:isDefinedBy ) (rdfs:seeAlso ) (owl:differentFrom ) >> (owl:sameAs ) (rdf:value ) (protege:inferredType ) (rdf:type ) (name ) >> (category ) (partnumber ?pn) (price ) (requires ) (address ) (customer-id >> ) >> (OrderNumber ?o) (quantity ))) >> while executing defrule MAIN::recommendipodnano >> while executing (run). >> Message: No such variable pn. >> Program text: ( run ) at line 39. >> at jess.Context.getVariable(Unknown Source) >> at jess.Variable.resolveValue(Unknown Source) >> at jess.Fact.a(Unknown Source) >> at jess.bj.call(Unknown Source) >> at jess.ep.a(Unknown Source) >> at jess.Funcall.execute(Unknown Source) >> at jess.Defrule.a(Unknown Source) >> at jess.Activation.if(Unknown Source) >> at jess.a8.a(Unknown Source) >> at jess.a8.int(Unknown Source) >> at jess.Rete.run(Unknown Source) >> at jess.a0.call(Unknown Source) >> at jess.ep.a(Unknown Source) >> at jess.Funcall.execute(Unknown Source) >> at jess.Jesp.a(Unknown Source) >> at jess.Jesp.for(Unknown Source) >> at jess.Jesp.parse(Unknown Source) >> at jess.Jesp.parse(Unknown Source) >> at jess.Main.execute(Unknown Source) >> at JessTab.JessTabEngine.run(JessTabEngine.java:114) >> at java.lang.Thread.run(Unknown Source) >> .......Pls reply at earliest....thanks >> >> -- >> View this message in context: >> http://www.nabble.com/No-such-Variable-error-tf2123743.html#a5858821 >> Sent from the Jess forum at Nabble.com. >> -------------------------------------------------------------------- >> To unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]' >> in the BODY of a message to [EMAIL PROTECTED], NOT to the list >> (use your own address!) List problems? Notify >> [EMAIL PROTECTED] >> -------------------------------------------------------------------- >> > > > > --------------------------------------------------------- > Ernest Friedman-Hill > Advanced Software Research Phone: (925) 294-2154 > Sandia National Labs FAX: (925) 294-2234 > PO Box 969, MS 9012 [EMAIL PROTECTED] > Livermore, CA 94550 http://herzberg.ca.sandia.gov > -------------------------------------------------------------------- > To unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]' > in the BODY of a message to [EMAIL PROTECTED], NOT to the list > (use your own address!) List problems? Notify [EMAIL PROTECTED] > -------------------------------------------------------------------- > > > -- View this message in context: http://www.nabble.com/No-such-Variable-error-tf2123743.html#a5875264 Sent from the Jess forum at Nabble.com. -------------------------------------------------------------------- To unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]' in the BODY of a message to [EMAIL PROTECTED], NOT to the list (use your own address!) List problems? Notify [EMAIL PROTECTED] --------------------------------------------------------------------
