I am getting something similiar. I just installed Jboss
Project EJB 3.0 is missing required library: 'C:\Program Files\jboss-4.0.3RC2\server\all\deploy\ejb3.deployer\jboss-ejb3.jar' EJB 3.0
The problem is that my configuration is under default so the path really is:
This happens even if I select the default configuration. Should I just manually add them in?
I ended up nuking my RC1 version of the app server and reloading my application from CVS and specifying it as a EJB3 project and got the paths to the library to point the RC2 location (in my case /Applications/jboss-4.0.3RC2). Hope the M2 version of the IDE comes out soon with the fix for the missing path in the library to the ejb3-persistence.jar. Until then I might resort to using my own user defined library for EJB3.
Oops - I meant to say M3 version of the IDE.