How Do I Fix Unable to Start Debugging on Web Server?


Angela Bailey

How Do I Fix Unable to Start Debugging on Web Server?

Are you facing issues with starting debugging on your web server? Don’t worry, we’ve got you covered! In this tutorial, we will explore some common solutions to fix the “Unable to Start Debugging on Web Server” error.

1. Verify Web Server Configuration

If you encounter this error, the first step is to ensure that your web server is properly configured for debugging. Make sure that:

  • Your web server has debugging enabled.
  • The correct version of .NET framework is installed.
  • The application pool is running under the correct .NET framework version.

If any of these configurations are incorrect, it can prevent debugging from starting successfully. Verify and make the necessary changes as needed.

2. Check Web Application Settings

When encountering debugging issues, it’s essential to double-check your web application settings. Here are a few things to consider:

  • Ensure that the web application’s debug attribute is set to “true” in the web.config file.
  • Confirm that the virtual directory or website points to the correct location of your application’s files.

By reviewing and correcting these settings, you can resolve potential configuration problems causing the “Unable to Start Debugging on Web Server” error.

3. Verify Firewall and Antivirus Settings

In some cases, firewall or antivirus software may interfere with the debugging process. To troubleshoot this issue:

  • Add an exception for your debugging tools in your firewall settings.
  • Temporarily disable your antivirus software and check if the issue persists.

Remember to re-enable your antivirus software after testing. If this resolves the problem, consider adding a permanent exception for your debugging tools.

4. Restart Your Machine

Restarting your machine can sometimes resolve issues related to debugging. After restarting, try starting the debugging process again and see if the error persists.

5. Reinstall Debugging Tools

If none of the above solutions work, consider reinstalling the debugging tools or updating them to the latest version. Sometimes, outdated or corrupted debugging tools can cause conflicts and prevent successful debugging.


In this tutorial, we explored various solutions to fix the “Unable to Start Debugging on Web Server” error. By verifying web server configuration, checking web application settings, reviewing firewall and antivirus settings, restarting your machine, and reinstalling debugging tools if necessary, you can overcome this issue and successfully start debugging on your web server.

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