很抱歉这个问题，但直到现在我还没有找到任何有用的答案。
我正在尝试遵循一个简单的教程，一切都很好。
但是当我在本地电脑上输入“mup setup”时，我收到了这个错误：
Started TaskList: Setup Docker
[---.--.-.254] - Setup Docker
[---.--.-.254] x Setup Docker: FAILED
-----------------------------------STDERR-----------------------------------
bash: line 7: docker: command not found
rm: cannot remove ‘/var/cache/apt/archives/lock’: No such file or directory
W: Failed to fetch http://ubuntu.kurento.org/dists/xenial/InRelease Unable to find expected entry 'km6/binary-amd64/Packages' in Release file (Wrong sources.list entry or malformed file)
E: Some index files failed to download. They have been ignored, or old ones used instead.
-----------------------------------STDOUT-----------------------------------
ce.com wily/main Translation-en [162 B]
Get:7 https://deb.nodesource.com wily/main Translation-en_US [162 B]
Get:8 https://deb.nodesource.com wily/main Translation-en [162 B]
Get:9 https://deb.nodesource.com wily/main Translation-en_US [162 B]
Hit http://downloads-distro.mongodb.org dist/10gen amd64 Packages
Get:10 https://deb.nodesource.com wily/main Translation-en [162 B]
Get:11 https://deb.nodesource.com wily/main Translation-en_US [162 B]
Hit http://downloads-distro.mongodb.org dist/10gen i386 Packages
Get:12 https://deb.nodesource.com wily/main Translation-en [162 B]
Get:13 https://deb.nodesource.com wily/main Translation-en_US [162 B]
Ign https://deb.nodesource.com wily/main Translation-en_US
Get:14 https://deb.nodesource.com wily/main Translation-en [162 B]
Ign https://deb.nodesource.com wily/main Translation-en
Ign http://downloads-distro.mongodb.org dist/10gen Translation-en_US
Ign http://downloads-distro.mongodb.org dist/10gen Translation-en
Fetched 12.8 kB in 3s (4,015 B/s)
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请注意，登录是成功的（我尝试在 mup.js 中输入错误的密码并在这一切之前停止进程）。
有谁知道我为什么会收到这个错误以及如何解决这个问题？我必须在远程服务器上安装一些东西吗？