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Product Version = NetBeans IDE 7.0.1 (Build 201107282000) Operating System = Windows Vista version 6.0 running on x86 Java; VM; Vendor = 1.6.0 Runtime = Java HotSpot(TM) Client VM 1.6.0-b105 the ide reports javax.persistence as being an invalid package (I am trying to do the appfuse quickstart tutorial0 and the project has the eclipselink and persistence libraries when I check libraries under tools - the help instruction as to how to access the libraries is hopelessly wrong - there is no "libraries node" for the project. Tx
You need to add the Eclipselink(JPA 2.0) library. Project Properties/Librares/Add Library.