2 asp.net mvc sites conflicting with each other

Question

i have deployed an asp.net mvc site a few days ago and everything is going fine. I just deployed a second website (totally unrelated)

i just went to the first website and i am now getting an error below. Can anyone help me determine what is going on. I dont understand why they would know anything about each other.

The controller name 'Home' is ambiguous between the following types:
Site.netmvc.Controllers.HomeController
SalemGolf.Controllers.HomeController
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: System.InvalidOperationException: The controller name 'Home' is ambiguous between the following types:
Site.netmvc.Controllers.HomeController
SalemGolf.Controllers.HomeController
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[InvalidOperationException: The controller name 'Home' is ambiguous between the following types:
Site.netmvc.Controllers.HomeController
SalemGolf.Controllers.HomeController]
System.Web.Mvc.DefaultControllerFactory.GetControllerTypeWithinNamespaces(String controllerName, HashSet`1 namespaces) +417
System.Web.Mvc.DefaultControllerFactory.GetControllerType(String controllerName) +286 System.Web.Mvc.DefaultControllerFactory.CreateController(RequestContext requestContext, String controllerName) +57
System.Web.Mvc.MvcHandler.ProcessRequest(HttpContextBase h

Answer 1

Make sure you don't have the assembly of the other site in your Bin directory.