라즈베리파이에서 패키지 오류로 인한 update에러 발생 시Get:1 https://download.docker.com/linux/raspbian stretch InRelease [31.1 kB]Get:2 http://archive.raspberrypi.org/debian stretch InRelease [41.9 kB]Ign:3 http://raspbian.raspberrypi.org/raspbian stretch InReleaseErr:4 http://raspbian.raspberrypi.org/raspbian stretch Release 404 Not Found [IP: 93.93.128.193 80]Get:5 http://archive.raspberrypi.org/debian stretch/m..