Anyone get a "kill() returned unexpected error 1" when testing iOS 13.2 beta?

Started seeing this whenever web views are shown. Also curious about the cause of it.

You're right. It has to do with WKWebViews. Perhaps after rendering a webpage, iOS tries to kill some process and it fails? It does try many times (over a 1000 times in less than 20 seconds, until the webview is replaced with another component)

The same executable if run on iOS < 13.2 does not cause the error message at all.

Thanks,

Neal

I am seeing this almost continuously in XCode with iOS 13.2 today - I am using a WKWebView in a cordova app.

Have you found out any more about this issue? I am getting swarms of these errors logged in XCode whenever i do anything with the app.

The exact message I see is:

[Process] kill() returned unexpected error 1

Any help or ideas would be great.

Hi Jeffree,

This is clearly an issue with iOS 13.2 beta and not Xcode. Opening up the console and running my freshly downloaded app from the app store on an iOS 13.2 device, reveals the same issue: Many "kill() returned unexpected error 1" are generated every second if a WKWebView is being displayed.. What process it's trying to unsuccesfully kill is still a mistery. Once I move to another view, the unsuccesfull kill messages stop.

Thanks,

Neal

I'm also seeing this continuously pop up in XCode beta (11B41)

It seems to only happen when the webview paints. If I leave the app alone, and the page has no animations running, the errors stop flooding the console...

I'm getting the same error when I downloaded iOS 13.2, Cordova project

I'm having the same issue at the moment I load a view controller with a wkwebview inside. Suddenly I get the error several times in a just second.

Also I have started to see this today since I installed iOS13.2 Beta and Xcode Version 11.2 beta (11B41)

...

    2019-10-10 12:10:47.867830+0200 (...) [Process] kill() returned unexpected error 1
    2019-10-10 12:10:47.908698+0200 (...) [Process] kill() returned unexpected error 1
    2019-10-10 12:10:47.908814+0200 (...) [Process] kill() returned unexpected error 1
    2019-10-10 12:10:47.934169+0200 (...) [Process] kill() returned unexpected error 1
    2019-10-10 12:10:47.947668+0200 (...) [Process] kill() returned unexpected error 1
    2019-10-10 12:10:47.964375+0200 (...) [Process] kill() returned unexpected error 1
    2019-10-10 12:10:48.193556+0200 (...) [Process] kill() returned unexpected error 1
    2019-10-10 12:10:48.193723+0200 (...) [Process] kill() returned unexpected error 1
    2019-10-10 12:10:48.193941+0200 (...) [Process] kill() returned unexpected error 1
    2019-10-10 12:10:48.194012+0200 (...) [Process] kill() returned unexpected error 1
    2019-10-10 12:10:48.195679+0200 (...) [Process] kill() returned unexpected error 1
    2019-10-10 12:10:48.200432+0200 (...) [Process] kill() returned unexpected error 1
    2019-10-10 12:10:48.207225+0200 (...) [Process] kill() returned unexpected error 1
    2019-10-10 12:10:48.207298+0200 (...) [Process] kill() returned unexpected error 1

...

Also seeing thousands of these errors if a scenekit view is visible. 13.2 beta.

I am now seeing these in the latest Catalina beta. I get one for every mousemove event in a web view.

Even worse with new 13.2 beta! Is there any way to stop this. The console is now unusable.

I noticed this messages since iPadOS 13.2 beta 3, though they may have been there before. They are not limited to WKWebView, I also get them (thow fewer) with some other types communications with services, such as using UIActivityViewController or simply switching apps. With WKWebView they are much more frequent than just one per second, but they end eventually (only to restart with the next request). I don't see them when using SceneKit, as ally reported here. Other than cluttering up the console, there does not seem to be any harm. Released iOS 13.1.3 does not seem to be affected.

Did somebody figure out where they come from and how to avoid them?

Still persist on iOS 13.2 official, Xcode 11.1.

I counted lines while using a WKWebView in the app: 6162 occurrences in 3 mins, ≈30/sec.

I'm dealing with the same issue.

13.2 is now live without an Xcode update also.

Cmon Apple.

+1 same here ... WebView and also while scrolling page content inside of it it generates even more of these errors

XCode 11.2 beta + iOS 13.2