Mutex could not be created

While working on a .NET 2.0 ASP.Net website, I tried to run the website and this is the error I got 

"Mutex could not be created"

Seemed like a difficult error, which would take days to resolve, and even when you finally find a solution, you still won't know what actually caused it.

But a little googling got me the solution, however, I still don't know what caused the error to occur.

You can find the solution at: http://forums.asp.net/t/936236.aspx/1?Mutex+Could+not+be+Created+

Copy pasting the solution from this site so that you don't have to go through the whole page. Just do EXACTLY as it says and you'll be out..

- If you have visual studio 2005 open, close it
- Go to the ASP.NET temporary folder for v2.0 of the framework
    <Windows dir>\Microsoft.Net\Framework\v2.0<extra numbers>\Temporary ASPNET pages
- Remove the folder for your application (or all of them)
- Reset IIS (on a command line window, >iisreset) [not always needed, but I had to use it sometimes]
- First Browse your page from IE (http://localhost/your app)
- Then reopen Visual studio