Trying to autowire an interface. Error: Consider defining a bean of type "interface"

Question

So I'm trying to autowire an interface.

MyApp:

@SpringBootApplication(scanBasePackages={"com.B","com.C"})
public class MyApp {
...
}

MyController (which is in package com.B):

@RestController
@RequestMapping("/users")
public class UserController
{
    @Autowired
    MyInterface myInterface;
}

MyInterface (which is in package com.C):

@Service
public interface MyInterface
{
...
}

But I'm getting this error:

Consider defining a bean of type 'C.MyInterface' in your configuration.

even though I have:

1. The package included here: @SpringBootApplication(scanBasePackages={"com.B","com.C"})
2. @Service in the interface

Is it even possible to autowire an interface?