Weblogic 10.3: Descriptor not found: META-INF/annotation-manifest.xml for app module null

This is probably a dumb question, but i'm stuck with the subject warning in the WebLogic console / deployments section when trying to deploy an EAR containing a Web Service project.

Here is the scenario (in WebLogic 10.3 ):

 

1.       Start a clean workspace

2.       Add a Web Service Project and associated EAR project

3.       Create a new WebLogic Web Service under Java Resources/src

4.       I can successfully test this web service by right clicking on it and picking “Run As -> Run on Server”

 

My problem is that when I deploy the EAR containing the web service project, then expand the EAR in the deployments section of the WebLogic console, I get a warning/error that says: “Descriptor not found: META-INF/annotation-manifest.xml for app module null”