Object reference not set to an instance of an object

[brgrz]

What could be the reason for getting the above exception when doing route translation registration:

        localization.ForCulture("en")
            .ForController<DirectoryCategoryController>()
            .ForAction(x => x.Directory())
            .AddTranslation("directory");

[Dresel]

Can you show me the complete route configuration + stacktrace?

[brgrz]

Here's the stack trace. The registration is pretty much the same as in your sample project (copypasted with some minor tweaks, nothing crucial is missing). I guess it cannot find the controller and action. FYI, I am using T4MVC if that makes any difference:

[NullReferenceException: Object reference not set to an instance of an object.] RouteLocalization.Mvc.Extensions.RouteEntryCollectionExtensions.MatchesControllerAndAction(Route route, String controller, String action) +57 RouteLocalization.Mvc.Extensions.<>c__DisplayClass8.<GetSimiliarUntranslatedRoutes>b__4(LocalizationCollectionRoute x) +22 System.Linq.WhereEnumerableIterator1.MoveNext() +139 System.Collections.Generic.List1..ctor(IEnumerable1 collection) +381 System.Linq.Enumerable.ToList(IEnumerable1 source) +58 RouteLocalization.Mvc.Extensions.RouteEntryCollectionExtensions.GetSimiliarUntranslatedRoutes(ICollection1 routeEntries, String culture, String controller, String action, String controllerNamespace, ICollection1 actionArguments) +204 RouteLocalization.Mvc.Extensions.RouteEntryCollectionExtensions.GetFirstUntranslatedRoute(ICollection1 routeEntries, String culture, String controller, String action, String controllerNamespace, ICollection1 actionArguments) +20 RouteLocalization.Mvc.RouteTranslator.AddTranslation(String url, String culture, String controller, String action, String controllerNamespace, ICollection1 actionArguments) +155 RouteLocalization.Mvc.RouteTranslator1.AddTranslation(String url, String culture, String controller, String action, String controllerNamespace, ICollection1 actionArguments) +49 RouteLocalization.Mvc.RouteTranslator1.AddTranslation(String url) +86 pending.Web.Routing.FrontendRoutes.RegisterFrontendRoutes(Localization localization) in f:\pending\Projects\...\pending.Web\Routing\FrontendRoutes.cs:14 pending.Web.Routing.RouteConfig.<RegisterRoutes>b__1(Localization localization) in f:\pending\Projects\...\pending.Web\Routing\RouteConfig.cs:883

[Dresel]

The sample project does use T4MVC too, so this should make no difference.

You have an controller level route defined?

[brgrz]

In sample project in RouteConfig.cs what did you mean with the following comment?

        // Add translations
        // You can translate every specific route that contains default Controller and Action (which MapMvcAttributeRoutes does)
        routes.Localization(configuration =>

[brgrz]

I did have controller level route defined and I just removed it. I also removed a couple of classic routes registered with .MapRoute(). The exception is still there.

[Dresel]

I can reproduce this exception with controller level route - but if say you have none, I can't reproduce it. Please post a minimal configuration (RouteConfig.cs / Controller.cs) that reproduces this issue.

[Dresel]

I just uploaded a new package that fixes the controller level attribute route issue. I also added controller level attribute routes to the sample.

If your object reference exception still exists, post your configuration so I can reproduce it.

[brgrz]

After updating I made some progress, now it says: No Route found for given Controller 'DirectoryCategory' and Action 'Directory'.

[brgrz]

I'm playing with RoutePrefix and route setups, will let you know how that goes..

[brgrz]

After adding RoutePrefix to controller and using SetRoutePrefix() things started to work. If I run into more issues, I will open new issue.