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After updating Xcode to v11.2, the Xcode console is reporting this error when running my Cordova/Ionic app from Xcode. While there is no noticeable issue while using the app, the error throws incessantly, even up to 20 times per second. I am using about 30 different native plugins. The error:

2019-11-23 11:29:02.971454+0200 AppName[446:21528] [Process] kill() returned unexpected error 1

I imagine this error has always been there but only now is being reported by Xcode. I would like to understand:

  1. What has changed in Xcode such that this error is being reported, and
  2. How to debug the error.

Update This appears to be an iOS bug, see relevant Github issue and SO question (thanks, @mikey).

Alex Steinberg
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  • Are your version is v11.2 or 11.2.1? if it's 11.2 i think you should update to v11.2.1 and try again bcz v11.2 have many bugs like mention [here] (https://stackoverflow.com/questions/58657087/after-upgrading-to-xcode-11-2-from-xcode-11-1-app-crashes-due-to-uitextlayoutv) – Trai Nguyen Nov 23 '19 at 10:36
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    https://stackoverflow.com/questions/58321114/why-i-get-the-console-warning-process-kill-returned-unexpected-error-1-when apparently it's a bug :( – mikey Jan 14 '20 at 01:55

1 Answers1

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This is fixed when updating your device to iOS 13.4. Here are the release notes, though they don't mention the fix. However, the notes attached to the software update on the device explicitly mentioned it.

See Why I get the console warning: [Process] kill() returned unexpected error 1 when I load a WKWebView in iOS13.2?

Alex Steinberg
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