missing persistence unit error unclear

Caused by: java.lang.IllegalArgumentException: JBAS016069: Error injecting persistence unit into CDI managed bean. Can't find a persistence unit named in deployment c11651d6-a1da-4f69-8b09-07224801d593.war

so does this error mean, it can't find my persistence.xml? does it mean that it can't find the persistence unit named in my xml on the server? I notice that there are 2 spaces between named and in, I'm guessing this means it would put a name there, perhaps ensuring the log entry has quotes '' whether there should be something there. If this means it can't find my persistence.xml it should say so.