i was updated my Xcode from 9.4 to 10 but now when i open it, there aren't any recent projects in lists. also when i open a project with Xcode 10, next time there isn't in list <img src="https://i.stack.imgur.com/jnmSf.jpg" alt="Xcode 10 recent projects problem">

This is due to the system setting for recent items being set to <code>None</code>. To fix: <ul> <li>Navigate to System Preferences -> General -> Recent items</li> <li>Update Recent Items to any value, for example, <code>5</code> </li> <li>Relaunch Xcode</li> </ul> <img src="https://i.stack.imgur.com/MJBY9.png" alt="enter image description here">