Spring boot 2+ Could not Autowire. There is more than one bean of 'UserDetailsService'

UserDetailsService was provided by spring. To Autowire you need to configure it with.

@Bean
public UserDetailsService getUserDetails(){
   return new JwtUserDetailService(); // Implementation class
}

If you are not interested in Bean Configuration. you can autowire JwtUserDetailService directly.

@Autowired
private JwtUserDetailService jwtUserDetailsService;