[rules-users] DSL in 3.1.0 m1

[fanghong]

Hi,

I tried to run TroubleTicketExampleWithDSL example in 3.1.0M1 but it displayed 
following error:

org.drools.rule.InvalidRulePackage: unknown:2:0 required (...)+ loop 
(decision=2) did not match anything; token=[@8,29:36='expander',<31>,2:0]

	at org.drools.rule.Package.checkValidity(Package.java:367)
	at org.drools.common.AbstractRuleBase.addPackage
(AbstractRuleBase.java:244)
	at com.sample.TroubleTicketExampleWithDSL.main
(TroubleTicketExampleWithDSL.java:25)
Exception in thread "main" 

The same example is ok in 3.0.5.

Can anyone help me with it?

Thanks a lot.

fanghong