这可能是重复的,但什么也不起作用。我正在更新这个更新
并在sudo apt-get更新中获取此错误。
W:GPG error: http://download.opensuse.org Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 5A7D1D38BEB6D886, W:Failed to fetch http://ppa.launchpad.net/screenlets-dev/ppa/ubuntu/dists/wily/main/binary-amd64/Packages 404 Not Found
, W:Failed to fetch http://ppa.launchpad.net/screenlets-dev/ppa/ubuntu/dists/wily/main/binary-i386/Packages 404 Not Found
, E:Some index files failed to download. They have been ignored, or old ones used instead.任何帮助都是非常感谢的!
是的,我使用主服务器
https://askubuntu.com/questions/750230
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