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start process exception

Question asked by opal on Dec 29, 2010
Latest reply on Dec 30, 2010 by opal
First of all hello to everybody :)

I've the following problem: With usage of this tutorial I've created a very simple process. Here's the xml:

<?xml version="1.0" encoding="UTF-8"?>
<definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:activiti="http://activiti.org/bpmn"
   typeLanguage="http://www.w3.org/2001/XMLSchema" expressionLanguage="http://www.w3.org/1999/XPath"
   targetNamespace="http://www.activiti.org/test">
   <process id="helloworld" name="helloworld">
      <startEvent id="startevent1" name="Start"></startEvent>
      <scriptTask id="scripttask1" name="Script Task"
         scriptFormat="Groovy">
         <script><![CDATA[out:print "Hi, " + name]]></script>
      </scriptTask>
      <sequenceFlow id="flow1" name="" sourceRef="startevent1"
         targetRef="scripttask1"></sequenceFlow>
      <sequenceFlow id="flow2" name="" sourceRef="scripttask1"
         targetRef="endevent1"></sequenceFlow>
      <endEvent id="endevent1" name="End"></endEvent>
   </process>
</definitions>

Then I deploy this process with the Activiti Probe - I guess it gets deployed find because I don't receive any error message. When I start the process with Activiti Explorer I get the following error message:
11290001 Wrapped Exception (with status template): antlr/collections/AST

What is the reason of this error and how to fix it?

The created process passes the JUnit test correctly. I've also copied the antlr jar to tomcat lib directory (just as the groovy and asm jars) - is this step correct?

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