title: Need preview provider named "ContentView_Previews_" in Xcode to use live preview
body: <p>I am new to programming and I am trying to build my 1st app using Swift in Xcode for iOS. But when I try to use the live preview feature, it says that it needs the preview provider &quot;ContentView_Preview_&quot; in order to use the live preview. Could you please tell me how to get this preview provider? Thanks in advance!</p>