Dependency injection issue in MVC 6

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MVC6

C#6.0

Hi All,

can any body will suggest me where i am doing wrong to use dependency injection.

When i am going to define parameterized constructor then my application is running but not invoking any Controller action Method.

bellow code ..



without defining constructor application is executing controller action method.
so can any one please guide me where i am doing mistake.

What I have tried:

services.AddScoped<IUser, User>();

IUser<UserData> repository;

       public ValuesController(IUser<UserData> o)
       {
           repository = o;
       }