Hi, I'm trying to run the helloworld example provided by JBoss Tools. I am running JBossAS 4.2.2 with ESB 4.6 and the latest version of AOP and the latest JBoss Messaging. The helloworld project is published to the runtime server without any problems. However, when I run the SendEsbMessage application, I'm get the following stack trace. I'm completely new to JBoss and I don't know where to go from here. Any help will be great. Thanks. | Usage SendEsbMessage <category> <name> <text to send> | Exception in thread "main" org.jboss.soa.esb.listeners.message.MessageDeliverException: Failed to deliver message [header: [ ]] to Service [JBossESB-Internal:DeadLetterService]. Check for errors. | at org.jboss.soa.esb.client.ServiceInvoker.post(ServiceInvoker.java:425) | at org.jboss.soa.esb.client.ServiceInvoker.deliverAsync(ServiceInvoker.java:250) | at org.jboss.soa.esb.client.ServiceInvoker.deliverToDeadLetterService(ServiceInvoker.java:292) | at org.jboss.soa.esb.client.ServiceInvoker.deliverAsync(ServiceInvoker.java:260) | at org.jboss.soa.esb.samples.quickstart.helloworld.test.SendEsbMessage.main(SendEsbMessage.java:56) | View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4259918#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...