보드에 업로드 중 뜬 메시지입니다.

케치는 프로그램 저장 공간 (3%) 중 1,068 바이트를 사용. 최대 32,256 바이트.
전역 변수는 (0%)의 동적 메모리중 11바이트를 사용, 2,037바이트의 지역변수가 남은. 최대는 2,048 바이트.
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x5d
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x5d
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x5d
보드에 업로딩중에 문제 발생. 다음을  참고하세요.http://www.arduino.cc/en/Guide/Troubleshooting#upload
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x5d
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x5d
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x5d
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x5d
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x5d
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x5d
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x5d
 

가이드 대로 설치하고 진행했는데, 무엇이 잘못있지 모르겠네요,

쉽게 설명 바랍니다.