Changes

Select the coreData entry from the top of the Groups & Files list to display all the files in the project and scroll down to MainWindow.xib. Double click on this file to load it into the Interface Builder tool. From the Library window, drag and drop a View Controller object onto the MainWindow.xib window. Once released, the new view controller should appear beneath the existing objects as illustrated in the following figure:

[[Image:core_data_mainwindow.jpg]]