Server Error in '/' Application.

Multiple controller types were found that match the URL. This can happen if attribute routes on multiple controllers match the requested URL.

The request has found the following matching controller types:
Website.Controllers.ContestsController
Website.Controllers.ArticlesController

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: Multiple controller types were found that match the URL. This can happen if attribute routes on multiple controllers match the requested URL.

The request has found the following matching controller types:
Website.Controllers.ContestsController
Website.Controllers.ArticlesController

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: Multiple controller types were found that match the URL. This can happen if attribute routes on multiple controllers match the requested URL.

The request has found the following matching controller types: 
Website.Controllers.ContestsController
Website.Controllers.ArticlesController]
   System.Web.Mvc.DefaultControllerFactory.GetControllerTypeFromDirectRoute(RouteData routeData) +481
   System.Web.Mvc.DefaultControllerFactory.GetControllerType(RequestContext requestContext, String controllerName) +139
   System.Web.Mvc.DefaultControllerFactory.System.Web.Mvc.IControllerFactory.GetControllerSessionBehavior(RequestContext requestContext, String controllerName) +57
   System.Web.Mvc.MvcRouteHandler.GetSessionStateBehavior(RequestContext requestContext) +209
   System.Web.Mvc.MvcRouteHandler.GetHttpHandler(RequestContext requestContext) +45
   System.Web.Routing.UrlRoutingModule.PostResolveRequestCache(HttpContextBase context) +219
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +223
   System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +220
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +94


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4682.0