update failed due to packages missing.

[李白|字一日]

when executing

sudo update-manager -d

got the following errors:

Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/ffmpeg_4.4.1-3ubuntu1_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libavdevice58_4.4.1-3ubuntu1_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libavfilter7_4.4.1-3ubuntu1_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libavformat58_4.4.1-3ubuntu1_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libpostproc55_4.4.1-3ubuntu1_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libavcodec58_4.4.1-3ubuntu1_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libswresample3_4.4.1-3ubuntu1_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libswscale5_4.4.1-3ubuntu1_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libavutil56_4.4.1-3ubuntu1_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/faad2/libfaad2_2.10.0-2_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/folks/folks-common_0.15.4-1_all.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/folks/libfolks26_0.15.4-1_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/libfcitx-utils0_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/libfcitx-gclient1_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/libfcitx-config4_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/libfcitx-core0_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-modules_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-module-x11_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-ui-classic_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-bin_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-data_4.2.9.8-4_all.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-table_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-pinyin_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-module-dbus_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-module-kimpanel_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx_4.2.9.8-4_all.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-frontend-all_4.2.9.8-4_all.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-frontend-gtk2_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-frontend-gtk3_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx-qt5/fcitx-frontend-qt5_1.2.7-1.1_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-module-lua_4.2.9.8-4_amd64.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-table-wbpy_4.2.9.8-4_all.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx/fcitx-table-wubi_4.2.9.8-4_all.deb
连接失败 [IP: 91.189.91.39 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/freecad/freecad-common_0.19.2%2bdfsg1-3_all.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/freecad/freecad-python3_0.19.2%2bdfsg1-3_amd64.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/freecad/libfreecad-python3-0.19_0.19.2%2bdfsg1-3_amd64.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/freecad/freecad_0.19.2%2bdfsg1-3_all.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/frei0r/frei0r-plugins_1.7.0-2_amd64.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libavutil56_4.4.1-3ubuntu1_i386.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libswresample3_4.4.1-3ubuntu1_i386.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libavcodec58_4.4.1-3ubuntu1_i386.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libavformat58_4.4.1-3ubuntu1_i386.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/flite/libflite1_2.2-2_i386.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libpostproc55_4.4.1-3ubuntu1_i386.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libswscale5_4.4.1-3ubuntu1_i386.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/ffmpeg/libavfilter7_4.4.1-3ubuntu1_i386.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/frameworkintegration/libkf5style5_5.90.0-0ubuntu1_amd64.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/faudio/libfaudio0_22.01-1_amd64.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/faudio/libfaudio0_22.01-1_i386.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx-qt5/libfcitx-qt5-data_1.2.7-1.1_all.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/fcitx-qt5/libfcitx-qt5-1_1.2.7-1.1_amd64.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/folks/libfolks-eds26_0.15.4-1_amd64.deb
连接失败 [IP: 91.189.91.38 80]
Failed to fetch
http://cn.archive.ubuntu.com/ubuntu/pool/universe/f/foreign/r-cran-foreign_0.8.82-1_amd64.deb
连接失败 [IP: 91.189.91.38 80]
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.ubuntu.com/archives/ubuntu-devel-discuss/attachments/20220128/72ceab3f/attachment-0001.html>