How can I troubleshoot a 403.14 error when running a Visual Studio 2019 project?

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Grade: Education Subject: Support
How can I troubleshoot a 403.14 error when running a Visual Studio 2019 project?
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Start by checking your web.config file for rules. Ensure they aren't overly restrictive. Verify the user account running IIS Express has sufficient permissions to access the project files and folders. Also, check if any custom authentication modules are interfering. Finally, temporarily disable any antivirus software to rule out interference.