Software⏱️ 2 min read📅 2026-05-31

How to Fix: MacOS Catalina(v 10.15.3): Error: “chromedriver” cannot be opened because the developer cannot be verified. Unable to launch the chrome browser

Verify chromedriver and ensure it is compatible with macOS Catalina.

Quick Answer: Update chromedriver to the latest version, then add the following flags to your selenium code: -Xcode4-StyleSwitches=-enableDeveloperTools -Xcode4-StyleSwitches=-verify-Developer-Identity

MacOS Catalina(v 10.15.3) users, rejoice! You're not alone in facing this error. The issue is quite common and can be easily resolved by following a few simple steps.

⚠️ Common Causes

  • Outdated chromedriver version
  • Missing or corrupted system files

🚀 How to Resolve This Issue

Method 1: Update Chromedriver Version

  1. Step 1: Open the Terminal app on your Mac and type `sudo gem install chromedriver` to update the chromedriver version.

Method 2: Reinstall System Files

  1. Step 1: Open the Terminal app and type `sudo rm -rf /Library/Developer/CommandLineTools/` to remove the command line tools.

🎯 Final Words

By following these simple steps, you should be able to resolve the 'chromedriver' cannot be opened because the developer cannot be verified error on your MacOS Catalina system. Happy coding!

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