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运行“sudo apt update”和“sudo apt upgrade”时出现“无法获取错误”

tag-icon • tag-icon apt package-management
运行“sudo apt update”和“sudo apt upgrade”时出现“无法获取错误”

运行 apt 命令时我看到此错误和这些警告：

结果sudo apt update：

W: Failed to fetch http://packages.microsoft.com/repos/vscode/dists/stable/InRelease  Temporary failure resolving 'packages.microsoft.com'
W: Some index files failed to download. They have been ignored, or old ones used instead.

结果sudo apt upgrade：

Err:4 http://archive.ubuntu.com/ubuntu focal-updates/universe amd64 libpython2.7-stdlib amd64 2.7.18-1~20.04
  Undetermined Error [IP: 91.189.88.142 80]
Get:5 http://archive.ubuntu.com/ubuntu focal-updates/universe amd64 python2.7-minimal amd64 2.7.18-1~20.04 [1,270 kB]
Get:6 http://archive.ubuntu.com/ubuntu focal-updates/universe amd64 libpython2.7-minimal amd64 2.7.18-1~20.04 [335 kB]
Get:7 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 mutter-common all 3.36.6-1ubuntu0.20.04.2 [12.8 kB]
Get:8 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 gir1.2-mutter-6 amd64 3.36.6-1ubuntu0.20.04.2 [110 kB]
Get:9 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 libmutter-6-0 amd64 3.36.6-1ubuntu0.20.04.2 [1,168 kB]
Get:10 http://archive.ubuntu.com/ubuntu focal-updates/main amd64 mutter amd64 3.36.6-1ubuntu0.20.04.2 [128 kB]
Fetched 3,515 kB in 39s (89.8 kB/s)                                            
E: Failed to fetch http://archive.ubuntu.com/ubuntu/pool/universe/p/python2.7/libpython2.7-stdlib_2.7.18-1~20.04_amd64.deb  Undetermined Error [IP: 91.189.88.142 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

结果ping -c 4 8.8.8.8：

4 packets transmitted, 4 received, 0% packet loss, time 3004ms
rtt min/avg/max/mdev = 172.978/212.903/252.643/30.728 ms

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