How can I troubleshoot a 404.0 error in my Angular application deployed to IIS?

Troubleshooting involves verifying the URL path in your Angular application matches the configured URL in IIS. Check the `index.html` file for any incorrect paths. Ensure the necessary files (e.g., .js, .css, .html) are present in the correct location on the IIS server. Also, review the IIS application pool settings to ensure they are configured properly and that the application is running.