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 am using eclipse mars and had this same exact error. What I had to do was 1 set the version of jpa for the project facet. right click project -> Properties -> Project Facets Set version of jpa to 2.1 in my case.

Note: Just configuring the jpa project facet will not remove the error. You also need to configure the platform.

Next I had to configure the JPA platform. right click project -> Properties -> JPA. Change platoform to be Hibernate 2.1 in my case.

This problem also manifests itself when you open the persistence.xml with the Persistence XML Editor and you only have a single Source tab at the bottom and not the other tabs for General, Connection, Options, Properties etc.