JBoss SOA-P gives error "Deployment "BPELEngine" is in error due to the following reason(s): org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element 'persistence'."

Issue

SOA-P is giving errors in log at startup. Text includes:

Deployment "jboss.esb.vfsfile:/usr/local/jboss/jboss531ga/server/default/deploy/riftsaw-esb.esb/" is missing the following dependencies:
    Dependency "<UNKNOWN jboss.esb.vfsfile:/usr/local/jboss/jboss531ga/server/default/deploy/riftsaw-esb.esb/>" (should be in state "Installed", but is actually in state "** UNRESOLVED Demands 'jboss.bpel:service=BPELEngine' **")

DEPLOYMENTS IN ERROR:
  Deployment "<UNKNOWN jboss.esb.vfsfile:/usr/local/jboss/jboss531ga/server/default/deploy/riftsaw-esb.esb/>" is in error due to the following reason(s): ** UNRESOLVED Demands 'jboss.bpel:service=BPELEngine' **
  Deployment "BPELEngine" is in error due to the following reason(s): org.xml.sax.SAXParseException: cvc-elt.1: Cannot find the declaration of element 'persistence'.