Software⏱️ 2 min read📅 2026-05-31

How to Fix: log4net not working

The log4net configuration is incorrect. The FileAppender requires a physical file path, not just a filename.

Quick Answer: Check the file path in the File parameter and ensure it exists on the server.

Log4net not working can be caused by a variety of issues, including incorrect configuration, missing dependencies, or incorrect file paths. In this guide, we will walk you through the steps to troubleshoot and resolve the issue.

🔍 Why This Happens

  • Incorrect configuration: Double-check that the log4net configuration in your web.config file is correct and matches the expected format.

🔧 Proven Troubleshooting Steps

Method 1: Reconfiguring Log4net

  1. Step 1: Check the log4net configuration in your web.config file and ensure it matches the expected format.

Method 2: Verifying Dependencies

  1. Step 1: Verify that the log4net NuGet package is installed in your project and its version matches the required version.

🎯 Final Words

By following these steps, you should be able to identify and resolve the issue with log4net not working in your application.

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