Chrome Extension error "service_worker": "background.js"

The error message "service_worker": "background.js" in a Chrome extension usually indicates that there is an issue with the background.js file, which is responsible for running the service worker.

Here are some steps you can take to try and resolve the issue:

1. Check for syntax errors: Make sure there are no syntax errors in the background.js file. Even a small error, such as a missing semicolon, can cause the service worker to fail.

2. Clear cache and cookies: Clear your browser cache and cookies and then try reloading the extension. Sometimes, old data can cause conflicts and prevent the service worker from running.

3. Check permissions: Make sure the extension has permission to run in the background. Check the "permissions" section of the manifest.json file to ensure that the extension has permission to run as a service worker.

4. Disable other extensions: Disable other extensions and try reloading the extension. Sometimes, extensions can conflict with each other and prevent the service worker from running.

5. Update Chrome: Make sure you're running the latest version of Chrome. Older versions of the browser may not support certain features required by the service worker.

If none of these steps work, you may need to consult the Chrome Developer Documentation or seek help from the Chrome Extension community for further assistance.