Currently I am creating a client api for an app that needs to consume data from Umbraco, for that I need to version the Api for which I want to use Api Version Selector.

However, when implementing it I keep getting errors like

{
"Message": "An error has occurred.",
"ExceptionMessage": "Multiple controller types were found that match the URL. This can happen if attribute routes on multiple controllers match the requested URL.\r\n\r\nThe request has found the following matching controller types: \r\nSampleCpim.HelloWorldController\r\nSampleCpim.HelloWorld2Controller",
"ExceptionType": "System.InvalidOperationException",
"StackTrace": " at System.Web.Http.Dispatcher.DefaultHttpControllerSelector.GetDirectRouteController(IHttpRouteData routeData)\r\n at System.Web.Http.Dispatcher.DefaultHttpControllerSelector.SelectController(HttpRequestMessage request)\r\n at System.Web.Http.Dispatcher.HttpControllerDispatcher.d__1.MoveNext()"
}

I have been able to find why that exception is caused, and am searching for a solution to that problem. When booting, Umbraco implements it's own Controller selecter called the NamespaceHttpControllerSelector which is configured in the WebInitialComponent. However, even when I create my own composer with the ComposeAfter attribute I don't seem to be able to override this selector.

How can I override the NamespaceHttpControllerSelector when booting Umbraco?