WKRefreshBackgroundTask Error trying to reach bktasksnapshot_ (null) file

Question

When performing a background task in watchOS 4.0 (Xcode 9.0 beta 6), I get error messages similar to the ones below. They do not seem to cause any problems, but I'm not sure. Does anyone know what causes these errors to be logged, and is there a fix or a way to suppress them?

2017-08-24 09: 03: 40.130009-0400 Extension of the cfanow application extension [6906: 377766] [bg_app_refresh] - [WKRefreshBackgroundTask cleanupStorage] _block_invoke: 213: Error trying to get file: /// Users / justindomnitz / Library / Developer / CoreSimulator / Devices / 264AA014-FD6C-426A-88DF-64E502393BAF / data / Containers / Data / PluginKitPlugin / 107681EE-B30E-49CD-9416-8F030D1CA0BF / Library / com.apple.watchkit / bktasksnapshot_ error code_rn = error = 260 "The file" bktasksnapshot_ (null) "cannot be opened because there is no such file." UserInfo = {NSURL = File: /// Users / justindomnitz / Library / Developer / CoreSimulator / Devices / 264AA014-FD6C-426A-88DF-64E502393BAF / data / Containers / Data / PluginKitPlugin / 107681EE-B30E-49CD-9416-8F0301 Library / com.apple.watchkit / bktasksnapshot_ (null), NSFilePath = / Users / justindomnitz / Library / Developer / CoreSimulator / Devices / 264AA014-FD6C-426A-88DF-64E502393BAF / data / Containers / Data / PluginKitPEEgin / 1076811101681 49CD-9416-8F030D1CA0BF / Library / com.apple.watchkit / bktasksnapshot_ (null), NSUnderlyingError = 0x79f3f3c0 {Domain Error = NSPOSIXErrorDomain Code = 2 "There is no such file or directory"}}

Answer 1

I ran into the same problem planning a snapshot in your handle(_ ) method. Preferably when the task is completed or when you have something to show.

 WKExtension.shared().scheduleSnapshotRefresh(withPreferredDate: fireDate, userInfo: nil) { error in if (error == nil) { print("successfully scheduled snapshot. All background work completed.") } }