[rules-users] Trouble upgrading to Drool 4.0

[Edson Tirelli]

     If you are upgrading, you should be upgrading to 4.0GA, not MR3.
     The error is because you need to add mvel jar to your classpath.

     []s
     Edson


2007/8/23, Tim.Nguyen at expeditors.com <Tim.Nguyen at expeditors.com>:
>
> Hi,
>
> I have been using JBoss Drool 3.06 for a few months, and now I want to
> upgrade it to 4.0 to take advantage of some new features. So I downloaded
> the JBoss Rules 4.0.0.MR3 Binaries, then drop 4 core drool jar files to my
> project lib
> drools-core.jar
> drools-compiler.jar
> drools-jsr94.jar
> drools-decisiontables.jar
>
> Then I rebuilt my project, changed a few Drool java code to adapt with 4.0
> ,
> then Run. I got the following error message:
>
> java.lang.NoClassDefFoundError:
> org/mvel/intergration/VaribaleResolverFactory.
>
> Could anyone please let me know if I am mising anything? Thank you!
> PS: My Java drool was working fine with 3.0.6
>
>
> Tim
>
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-- 
  Edson Tirelli
  Software Engineer - JBoss Rules Core Developer
  Office: +55 11 3529-6000
  Mobile: +55 11 9287-5646
  JBoss, a division of Red Hat @ www.jboss.com
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