The Apple Watch app will not reinstall after uninstallation on iOS 8.2, it just hangs on the launch screen

Question

I can install the Apple Watch app (i.e. during production) on my watch, and it loads for the first time. If I remove it and reinstall it, it will install perfectly, but when I touch the icon, it just freezes. It has a download progress bar and application name, and it never loads.

Here is the error from the device log:

Jul 6 15:20:23 xxxxx-iPhone companionappd[417] <Notice>: (Error) WatchKit: <SPApplicationManager.m __56-[SPApplicationManager beginUsingPlugin:withCompletion:]_block_invoke264:392> * * * After 10.0 secs, beginUsing: hasn't called us back for plugin with beginUsingInstanceUUID <__NSConcreteUUID 0x127e18800> 53259124-xxxx-454F-xxxx-FD013Dxxxxxx

Jul 6 15:20:23 xxxxx-iPhone companionappd[417] <Notice>: (Warn ) WatchKit: <SPApplicationManager.m __83-[SPApplicationManager getOrBeginActivePlugInForApplication:setupBlock:completion:]_block_invoke_2319:478> Unable to start plugin com.xxxxx.watchkitextension 0x127e887c0 with identifier com.xxxxx.watchkitapp (Error Domain=com.apple.watchkit.errors Code=17 "PKPlugin beginUsing: never called back" UserInfo=0x127d62b90 {NSLocalizedDescription=PKPlugin beginUsing: never called back})

Jul 6 15:20:23 xxxxx-iPhone companionappd[417] <Notice>: (Error) WatchKit: <SPCompanionAppServer.m __51-[SPCompanionAppServer sendToRemoteInterface:call:]_block_invoke492:860> activePlugInForIdentifier: returned nil for application com.xxxxx.watchkitapp

I can not understand what is happening. Is this an SDK / OS issue that is out of my hands? Has anyone seen this?

UPDATE: I just read (and confirmed) on the forums that if you restart the watch and phone, the watch application will load without problems. Sounds like an OS error to me.

UPDATE 2: Got a response from the radar that I filed:

I think it’s good to confirm that they knew about it and corrected it.

Answer 1

It definitely sounds like an OS error, as your log even says Unable to start plugin com.xxxxx.watchkitextension . You cannot do anything. I was going to say that you probably should just restart your simulator so that it works correctly again. Another option would only be to reset your simulator and hardware, however this is only the worst case scenario. As said above, you should file a radar here . Finally, you can try to install it on a real device and then uninstall it to check if this is a simulator error, or it will also happen on regular devices. There is a good chance that just a simulator will not be able to run the application. Hope this helps, Julian

Answer 2

I myself have experienced this problem and you should not worry about it. This is a common watchOS error that every now and then experiences, even ordinary users with third-party applications.

Since watchOS is actually not in beta (in my opinion), you should wait for the next release, have a cup of coffee and hope that it will be fixed soon.

I can definitely promise that you are not alone with this error, and that you cannot do anything against it until Apple fixes it. If you cannot wait, you can create an error report here .

Answer 3

If you encounter the same problem on a real hour - restarting the clock and the phone helped me, this question never came back, at least until the next time I had this problem.

Used OS versions:

iPhone: 5s

iOS: 8.3

Watch OS: 1.0.1

Thanks to the forum topic below

https://forums.developer.apple.com/thread/7845

Answer 4

I recently ran into this issue when launching the beta beta of the beta beta of the iOS beta of Xcode 7.0 beta 3. The simulator error log showed the following.

Jul 15 09:48:39 mymachine DTServiceHub [69227]: DTMemlimitAssertionFactory: failed to delete active and inactive memory limits for pid 1 (result = -1)

Jul 15 09:48:42 mymachine companionappd [69155]: (Error) WatchKit: SPCompanionAppServer.m - [SPCompanionAppServer _launchSockPuppetAppForCompanionAppWithIdentifier: options: completion]: 1176 The com.mydomain.myapp.watchkitapp command failed

I believe this was because I called the WatchKit app “Watchkit App” instead of “myapp WatchKit App” when adding a new target to an existing iOS 9 beta app.

To fix this, I backed up the InterfaceController.swift and Interface.storyboard files (only the files in WatchKit that I changed). Removed the WatchKit App and WatchKit App Extension groups in the project. And removed the goals of the WatchKit App and WatchKit App Extensions.

I again added the WatchKit target with the correct name "myapp WatckKit App". Overwrote new files with my backup files. Now the application and the viewing application are working fine.