Software⏱️ 3 min read📅 2026-06-03

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

iOS 13.2 beta issue with WKWebView kill() error.

Quick Answer: Try updating to the latest iOS 13.2 beta version or consider using a different web view implementation.

📋 Table of Contents

  1. 🛑 Root Causes of the Error
  2. ✅ Best Solutions to Fix It
  3. 💡 Conclusion

The error '[Process] kill() returned unexpected error 1' is a known issue in iOS 13.2 beta, affecting developers who load WKWebView objects in their storyboards.

This error can be frustrating, especially when it occurs repeatedly while loading web content. However, with the right troubleshooting steps, you can resolve this issue and continue developing your app without interruptions.

🛑 Root Causes of the Error

  • The primary cause of this error is a known bug in iOS 13.2 beta that affects WKWebView's handling of process termination. When the system tries to terminate the process, it returns an unexpected error 1, causing the console warning.
  • Another possible reason for this issue could be related to the way WKWebView handles its delegate methods. In some cases, the delegate may not be properly set up or configured, leading to process termination issues.

✅ Best Solutions to Fix It

Disable Web Content Processing

  1. Step 1: Open your project's Info.plist file and add the 'Non-standard web content processing' key with a value of 'YES'. This will disable web content processing for your app.
  2. Step 2: Restart your Xcode project to ensure that the changes take effect.
  3. Step 3: Test your app again to see if the error persists.

Update WKWebView to Latest Version

  1. Step 1: Open your project's Podfile and update the 'WKWebView' dependency to the latest version using `pod update WKWebView`.
  2. Step 2: Run `pod install` in your terminal to update the dependencies.
  3. Step 3: Restart your Xcode project to ensure that the changes take effect.
  4. Step 4: Test your app again to see if the error persists.

💡 Conclusion

By following these troubleshooting steps, you should be able to resolve the '[Process] kill() returned unexpected error 1' issue in iOS 13.2 beta when loading WKWebView objects in your storyboard. If the issue persists, consider reaching out to Apple's support team for further assistance.

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