The application domain in which the thread was running has been unloaded.

In this blog, we will see how to fix the error 'The application domain in which the thread was running has been unloaded.'

This error occurs when we try to run a web site application which is configured in IIS and the physical path of the web site is either removed or changed.

 

To fix the error, go to IIS Manager-Sites-Default Web Site->Manage Web Site-Advanced Settings. Set the Physical path e.g

d:\Projects\MyProject\MyProject.UI