spring boot mongo with CommonMongoRepository but Error Help Me

Question

Hi I am trying to create a simple CRUD Common Repository utilizing spring boot mongo.

However, an error occurred and it has not been resolved for 3 days. This is my source code.

0. MemberDTO.java

    @Getter
    @Setter
    @Document(collection = "member")
    public class MemberDTO {
   
   
        @Id
        private String memberId;
   
        private String memberPwd;
   
        private String memberName;
   
        private String memberEName;
   
   
    }
   

1. MemberController.java

    @Controller
    @RequestMapping("/member")
    public class MemberController {
   
   
        @Autowired
        private MemberSv memberSv;
   
        @RequestMapping(value = "/join", method = RequestMethod.POST)
        public String member_save(MemberDTO memberDTO)
        {
            memberSv.member_save(memberDTO);
            return "join_form";
        }
    }
   

2. MemberSvImp.java

    @Service
    public class MemberSvImp{
   
        @Autowired
        private MemberSv memberSv;
   
        public MemberDTO member_save(MemberDTO memberDTO) {
            memberSv.save(memberDTO);
            return memberDTO;
        }
   
    }
   

3. MemberSv.java

    public interface MemberSv extends CommonRepository<MemberDTO, String> {
   
   
        MemberDTO member_save(MemberDTO memberDTO);
   
    }
   

4. CommonRepository.java

    @NoRepositoryBean
    public interface CommonRepository<T, ID extends Serializable> extends         MongoRepository<T, ID> {
   
        <E extends T> E save(E entity);
    }
   

5. Error... org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating
   bean with name 'memberController': Unsatisfied dependency expressed through field
   'memberSv'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'memberSv' defined in com.example.accountproject.models.interfaces.MemberSv defined in @EnableMongoRepositories declared on AccountProjectApplication:
   Invocation of init method failed; nested exception is
   org.springframework.data.repository.query.QueryCreationException: Could not create query
   for public abstract com.example.accountproject.documents.MemberDTO .accountproj
   ect.documents.MemberDTO)! Reason: No property member found for type MemberDTO! Did you mean 'memberId'?; nested exception is
   org.springframework.data.mapping.PropertyReferenceException: No property member found for type MemberDTO! Did you mean 'memberId'?