For anybody who was brought here by googling the generic bean error message, but who is actually trying to add a feign client to their Spring Boot application via the @FeignClient annotation on your client interface, none of the above solutions will work for you.
To fix the problem, you need to add the @EnableFeignClients annotation to your Application class, like so:
@SpringBootApplication
// ... (other pre-existing annotations) ...
@EnableFeignClients // <------- THE IMPORTANT ONE
public class Application {
Side note: adding a @ComponentScan(...) beneath @SpringBootApplication is redundant, and your IDE should flag it as such (IntelliJ IDEA does, at least).