[rules-users] RuntimeDroolsException: Unable to load dialect

[Mark Proctor]

Chong Minsk Goh wrote:
> Hi,
>  
> I am trying to run Drools on Netbeans. I have added the jars from 
> Drools 4.0.2.
>  
> However, I encountered an error
>  
> org.doxa.rules.RulesManager - org.drools.RuntimeDroolsException: 
> Unable to load dialect 
> 'org.drools.rule.builder.dialect.mvel.MVELDialectConfiguration:mvel'
MVEL is a required jar, not an optional one, put it on your classpath 
and hopefully this should work for you.
>  
> I did not use any MVEL dialects in my rules definition. Here is my rule:
> *
>
> rule
>
> * "Out of Range" *when* m : Message( message == "checkRange" , status 
> == 1 )
>
> Range(myMin : myMin, myMax : myMax, myValue : myValue)
>
> Range(myValue < myMin || myValue > myMax)
>
> *then* m.setMessage("");
>
> m.setStatus(0);
>
> *end*
>  
> Has anyone attempted using Netbeans with Drools and faced this problem?
>  
> Best regards
> Eric
>  
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>
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