getid()오류

// Member.java
package hello.core.member;

public class Member {

    private Long id;
    private String name;
    private Grade grade;

    public Member(Long id, String name, Grade grade) {
        this.id = id;
        this.name = name;
        this.grade = grade;
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public Grade getGrade() {
        return grade;
    }

    public void setGrade(Grade grade) {
        this.grade = grade;
    }
}

멤버 클래스코드이고

package hello.core.member;

import java.lang.reflect.Member;
import java.util.HashMap;
import java.util.Map;

public class MemoryMemberRepository implements MemberRepository{

    private static Map<Long, Member> store =new HashMap<>();
    @Override
    public void save(Member member) {
        store.put(member.getId() ,member);
    }

    @Override
    public Member findByID(Long memberId) {
        return store.get(memberId);
    }
}

레파지토리 코드인데 getId부분에 오류가 뜹니다