Server Error in '/' Application.

---

A storage mechanism has already been configured for this application

Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: SharpArch.Core.PreconditionException: A storage mechanism has already been configured for this application

Solution

I got Same Issue   solved by resetting the iis using following command

Try to run iisreset command

in command prompt