Configuration error Description: an error occurred during the processing of a configuration file required to service this request

This article outlines an error when manually configuring AppInsight for Exchange. This causes the Powershell website to fail due to the parent configuration files locking a section for the default web site/Powershell path from inherited configuration files.

When testing on the Exchange server to verify the functionality of getting to the PowerShell website, using a browser when attempting to connect to: https://<local host ip>/powershell, RETURNED; Configuration error.

Server Error in '/PowerShell' Application

Configuration error

Description: an error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: This configuration section cannot be used at this path. This happens when the site administrator has locked access to this section using <location allowOverride="false"> from an inherited configuration file.

Source file: C:\Program Files\Microsoft\Exchange Server\v14\ClientAccess\PowerShell\Web.config

This is due to errors in the web.config file located at C:\Windows\microsoft.net\framework\v2.0.\config\web.config.

There are other inherited properties from the ApplicationHost config file located at C:\Windows\System32\inetsrv\config\.

1. Modifying the confgi files within C:\Windows\microsoft.net\framework\v2.0.\config\web.config to allow <location allowOverride="true">.
2. Recycle the application pools within ISS manager.
3. performed an IISreset (this step may not be needed but it was done in this instance).