I have button inside a view inside a scroll view. The button does not work.How can I get the button to work?I've consulted some answer elsewhere, but most are old and don't have swift examples.Any help greately appreciated. Working with xcode 7.1 and swift 2.

This morning I opened an app in Xcode 15 and find that info.plist and main.storyboard have gone missing -- I see a blank screen when Main or Info is selected in the Navigator. Tabs at the top of the screen as they should be. The app builds and runs as it should in the Simulator. I was working the app not to long ago and the storyboard and info.plist were visible as they should be. Can someone suggest what the problem might be and how to troubleshoot? Thanks in advance. MacMini M1 Sonoma 14.0, Xcode Version 15.2 (15C500b)