我知道这看起来像this question的副本，但是那里提供的解决方案对我不起作用，因为我已经禁用了dl.google.com并且遇到了其他问题。
这是终端输出
sudo apt-get update
Ign http://ftp.us.debian.org jessie InRelease
Hit http://ftp.us.debian.org jessie-updates InRelease
Hit http://security.debian.org jessie/updates InRelease
Hit http://ftp.us.debian.org jessie Release.gpg
Get:1 http://ftp.us.debian.org jessie-updates/main amd64 Packages/DiffIndex [7,900 B]
Get:2 http://ftp.us.debian.org jessie-updates/main Translation-en/DiffIndex [2,704 B]
Hit http://ftp.us.debian.org jessie Release
Hit http://ftp.us.debian.org jessie-updates/main Sources
Get:3 http://ftp.us.debian.org jessie-updates/main amd64 2016-03-26-2053.48.pdiff [527 B]
Get:4 http://ftp.us.debian.org jessie-updates/main amd64 2016-04-10-2047.32.pdiff [2,817 B]
Hit http://security.debian.org jessie/updates/main Sources
Get:5 http://ftp.us.debian.org jessie-updates/main amd64 2016-04-19-2053.08.pdiff [2,111 B]
Hit http://security.debian.org jessie/updates/main amd64 Packages
Get:6 http://ftp.us.debian.org jessie-updates/main amd64 2016-04-23-1455.20.pdiff [378 B]
Get:7 http://ftp.us.debian.org jessie-updates/main amd64 2016-05-02-2123.23.pdiff [254 B]
Hit http://security.debian.org jessie/updates/main Translation-en
100% [InRelease gpgv 20.1 kB] [Waiting for headers]Splitting up /var/lib/apt/lists/partial/packages.debian.org_unstable_dists_jessie-main_InRelease into data anIgn https://packages.debian.org jessie-main InRelease
E: GPG error: https://packages.debian.org jessie-main InRelease: Clearsigned file isn't valid, got 'NODATA' (does the network require authentication?)
然而，在我被困在80％之前，就像最后一个问题上的原始海报一样，可以看出它是dl.google.com导致它，我没有进一步的线索，如何尝试... < / p>