Config Error: This configuration section cannot be used at this path

Question

I\'ve encountered an error deploying a site to a server. When trying to load the home page, or access authentication on the new site in IIS, I get the error:

Answer 1

To fix this open up the IIS Express applicationhost.config. This file is stored at C:\Users[your user name]\Documents\IISExpress\config\applicationhost.config

Update for VS2015+: config file location is $(solutionDir).vs\config\applicationhost.config

Look for the following lines

Change those lines to

Save it and refresh Asp.net Page.