Configuration error

Question

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: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.

Source Error:

Line 24:             ASP.NET to identify an incoming user. 
Line 25:         -->
Line 26:        <authentication mode="Windows"/>
Line 27:     
Line 28:        <!--

Answer 1

The ASP.NET engine is suggesting a solution to this problem and it is the most common cause for this error:

In the IIS Snap-in (Inetmgr.msc), right click your website, go to the properties dialog and on the Virtual directory tab, under "Application Settings", click "Create" to create an application for the web app.

Answer 2

It seems that there are multiple web.config files lying around in a single virtual directory. Just search the virtual directory, and see if that is the case; if yes, then remove the unnecessary web.config file or make the directory containing that web.config as a virtual directory too.