Eclipse does not recognize content of persistence.xml

Question

Im getting the following error in eclipse:

The persistence.xml file does not have recognized content.

My persistence.xml file works great in my application but e

Answer 1

I had this same problem in Eclipse 3.6 (Helios). The cause was the JPA Facet was set to JPA Version 1.0, however my persistence.xml file was specifying JPA Version 2. So I changed the JPA Facet to version 2.0 and the problem went away. (Project --> Properties --> Project Facets --> "Configuration" drop down --> set this to "Minimal JPA 2.0 configuration"