Hi,

I am trying to get a very simple DSL working but all the time it gives the error of Unable to expand: If I take the DSL away everything runs fine, not sure whats going on.

So what I did is strip away all other stuff and just added a plain simple DSL -- but still the same error

Unable to expand:             LOGGING

DSLR file Contents:

package test.rules

dialect "mvel"

expander testing.dsl

rule "TestingCheck"

      when

      then

LOGGING

end

DSL file content

[consequence][]LOGGING=System.out.println("hello");

ChangeSet XML file (test_changeset.xml)

<change-set xmlns='http://drools.org/drools-5.0/change-set'

             xmlns:xs='http://www.w3.org/2001/XMLSchema-instance'

             xs:schemaLocation='http://drools.org/drools-5.0/change-set drools-change-set-5.0.xsd' >            

   <add>

       <resource source='classpath:test/rules/test.drl' type='DSLR' />

       <resource source='classpath:test/rules/testing.dsl' type='DSL' />

   </add>

</change-set>

I am loading the changeset set via

KnowledgeBuilder kbuilder = KnowledgeBuilderFactory.newKnowledgeBuilder();               

kbuilder.add(ResourceFactory.newClassPathResource("test_changeset.xml"), ResourceType.CHANGE_SET);

Any hint what is going wrong?

Thanks

Vijay