I'm trying to fool around with CoreData for the first time, and maybe I'm missing something major... I'm looking at a couple of online tutorials and one of the first steps is to open the .xcdatamodel within XCode and set up your data structure. However, I always get an error telling me it could not find the file. The path is correct and permissions are fine. Even the CoreData example projects included in the Developer directory behave the same way. I had a few different XCode installs from all the recent iPhone SDK releases, so I used the command-line uninstall to remove all of them and then re-installed the latest. But that didn't change anything. I'm completely stumped. Any idea? Thanks.