swift 5: 關於 iPad OS 13.2 Can't end BackgroundTask錯誤訊息

APP 在執行時, 按了一下 Home/Touch ID Sensor 就會發生

Can't end BackgroundTask: no background task exists with identifier 3 (0x3), or it may have already been ended. Break in UIApplicationEndBackgroundTaskError() to debug.

在網路查詢了一堆資料
得到結論: 別理會這個錯誤

註:

 這在錯誤訊息 在 Xcode 12.4 就突然消失了...

 反而跑出另一段錯誤訊息 

 [Snapshotting] 

Snapshotting a view (0x102810000, UIKeyboardImpl) that has not been

 rendered at least once requires afterScreenUpdates:YES.