Error when deploying project generated with seam-gen

[amitev]

16:25:49,437 ERROR [MainDeployer] Could not create deployment: file:....t/servers/jboss-4.0.4.GA/server/default/tmp/deploy/tmp18413SeamGenProject.ear-
contents/SeamGenProject.jar
org.jboss.deployment.DeploymentException: ejb-jar.xml must either obey the right xml schema or define a valid DOCTYPE! at org.jboss.metadata.ApplicationMetaData.importEjbJarXml(ApplicationMet
aData.java:339)

Idea what's wrong?

[christian.bauer]

Wrong JBoss AS version, read the README and follow it step-by-step.