I'm using Xcode 4.1 and when pressing "Hi-Pri Tasks" on the iPhone simulator, it gives me an SIGABRIT error: "A fetch request must have an entity."

I seem to have found the solution: in the Xcode data modeler, if i select "highPriTasks" fetched property and change the Tools Version -> Minimum to "Xcode 3.2", it works. By the default setting of "Xcode 4.1", it does not. The source code example given from this site also has this setting set at only 3.2.

Does anyone know why? it is not making much sense to me.

Thanks for the help!