I've made some changes to Xcode setting for a particular app, late at night and am not sure I didn't change something I shouldn't have. Would like to start all over. Where on a Mac are the files that keep the settings for a particular app, call it Example, in Xcode so I can restore them with Time Machine from a few days ago before I made these changes? Thanks. Steve

Hmm. The project and code are kept wherever you keep it. All settings are held within that directory structure. Any 'temp' files and such are held in '~/Library/Developer/Xcode/DerivedData/AppName-gobbitygook' but you really don't have to 'go in there'; just reset your simulator 'content and settings' from the iOS Simulator menu, and in Xcode do a 'clean' on your project. It 'seems' with the new xcode (or maybe it was always this way?) you have to clean for each type of device... meaning, if you 'clean' the iPhone 6 simulator, the iPhone 4 simulator may still have cached data... You have to reset 'each' one. Hope this helps. Cheers! -- Smug

Unfortunately, doing a Clean on an Xcode project will not reset the particular Xcode setting that you had modified. Perhaps a Time Machine rollback is your best shot. What setting did you change? In a Storyboard, in a XIB, etc. For now, to show as an example lets assume its a XIB that you had wrongly modified. Then right-click on that XIB in the Xcode Project column. Select View in Finder. Then you can ask Time Machine to rollback that particular file. -- Niraj

Changes made were to build active architecture and valid architectures. As it turns out I didn't have to retrieve from Time Machine since I was able to fix my original problem but It's nice to get these ideas in case I have to in the future. Thanks. Steve