c# - ASP.NET MVC 5 Custom Error Pages Doesn't Work -

i've set webconfig custom error pages. doesn't work. create controller , action name "hata". can see page "http://localhost/hata/bulunamadi" when try open not exists page custom error pages doesn't show. (i see iss default 404 page)

<system.web>     <customerrors defaultredirect="~/hata/bulunamadi" redirectmode="responserewrite" mode="on">   <error statuscode="404" redirect="~/hata/bulunamadi"/> </customerrors> </system.web> 

<customerrors mode="on" defaultredirect="~/error">   <error redirect="~/error/notfound" statuscode="404" /> </customerrors> 

and controller contains following:

public class errorcontroller : controller {     public viewresult index()     {         return view("error");     }     public viewresult notfound()     {         response.statuscode = 404;  //you may want set 200         return view("notfound");     } }