ee-component-showcase cannot be deployed on Jboss6 server:

11:49:09,317 ERROR [ProfileServiceBootstrap] Failed to load profile:: org.jboss.deployers.client.spi.IncompleteDeploymentException: Summary of incomplete deployments (SEE PREVIOUS ERRORS FOR DETAILS):

DEPLOYMENTS IN ERROR:
  Deployment "vfs:///C:/Servers/jboss-6.0.0.Final/server/default/deploy/ee-component-showcase.war" is in error due to the following reason(s): org.xml.sax.SAXException: cvc-complex-type.2.4.a: Invalid content was found starting with element
 'attribute'. One of '{"http://java.sun.com/xml/ns/javaee":tag-extension}' is expected. @ vfs:///C:/Servers/jboss-6.0.0.Final/server/default/deploy/ee-component-showcase.war/WEB-INF/lib/compat-composite-comps.jar/META-INF/icecc.tld[476,20]

        at org.jboss.deployers.plugins.deployers.DeployersImpl.checkComplete(DeployersImpl.java:1228) [:2.2.0.GA]
        at org.jboss.deployers.plugins.main.MainDeployerImpl.checkComplete(MainDeployerImpl.java:905) [:2.2.0.GA]
        at org.jboss.system.server.profileservice.deployers.MainDeployerPlugin.checkComplete(MainDeployerPlugin.java:87) [:6.0.0.Final]
        at org.jboss.profileservice.deployment.ProfileDeployerPluginRegistry.checkAllComplete(ProfileDeployerPluginRegistry.java:107) [:0.2.2]
        at org.jboss.system.server.profileservice.bootstrap.BasicProfileServiceBootstrap.start(BasicProfileServiceBootstrap.java:135) [:6.0.0.Final]
        at org.jboss.system.server.profileservice.bootstrap.BasicProfileServiceBootstrap.start(BasicProfileServiceBootstrap.java:56) [:6.0.0.Final]
        at org.jboss.bootstrap.impl.base.server.AbstractServer.startBootstraps(AbstractServer.java:827) [jboss-bootstrap-impl-base.jar:2.1.0-alpha-5]
        at org.jboss.bootstrap.impl.base.server.AbstractServer$StartServerTask.run(AbstractServer.java:417) [jboss-bootstrap-impl-base.jar:2.1.0-alpha-5]
        at java.lang.Thread.run(Thread.java:619) [:1.6.0_07]