很明显,你的源用错了。如果你的是debian 10的版本。就用我这个。
还有你的debian 也打错了。
修改 /ect/apt/sources.list
deb
http://mirrors.163.com/debian/ buster main non-free contrib
deb
http://mirrors.163.com/debian/ buster-updates main non-free contrib
deb
http://mirrors.163.com/debian/ buster-backports main non-free contrib
deb-src
http://mirrors.163.com/debian/ buster main non-free contrib
deb-src
http://mirrors.163.com/debian/ buster-updates main non-free contrib
deb-src
http://mirrors.163.com/debian/ buster-backports main non-free contrib
deb
http://mirrors.163.com/debian-security/ buster/updates main non-free contrib
deb-src
http://mirrors.163.com/debian-security/ buster/updates main non-free contrib
然后更新一下
apt-get update
apt-get upgrade