1. $ sudo apt-get update
  2. Hit:1 http://debian.linux.org.tw/ubuntu bionic InRelease
  3. Hit:2 http://APT.spideroak.com/ubuntu-spideroak-hardy release InRelease
  4. Hit:3 http://debian.linux.org.tw/ubuntu bionic-updates InRelease
  5. Hit:4 http://debian.linux.org.tw/ubuntu bionic-backports InRelease
  6. Hit:5 http://debian.linux.org.tw/ubuntu bionic-security InRelease
  7. Get:6 http://debian.linux.org.tw/ubuntu bionic-proposed InRelease [235 kB]
  8. Get:7 http://debian.linux.org.tw/ubuntu bionic-proposed/universe i386 Packages [798 kB]
  9. Get:8 http://debian.linux.org.tw/ubuntu bionic-proposed/universe amd64 Packages [820 kB]
  10. Ign:9 http://debian.linux.org.tw/ubuntu bionic-proposed/universe Translation-en
  11. Get:9 http://debian.linux.org.tw/ubuntu bionic-proposed/universe Translation-en [329 kB]
  12. Err:9 http://debian.linux.org.tw/ubuntu bionic-proposed/universe Translation-en
  13. File has unexpected size (327664 != 329484). Mirror sync in progress? [IP: 140.112.8.139 80]
  14. Hashes of expected file:
  15. - Filesize:329484 [weak]
  16. - SHA256:f13af6c9027a7e97150e175c92448b3772c7f775b5e2b410426e63a98e96f7da
  17. - SHA1:11a8dd24e0ac988101b802ae969bcfb2ebc529c3 [weak]
  18. - MD5Sum:e1fa3590f54dcf752ecc67556275f67e [weak]
  19. Release file created at: Mon, 29 Jan 2018 11:42:31 +0000
  20. Fetched 1,852 kB in 14s (129 kB/s)
  21. Reading package lists... Done
  22. E: Failed to fetch http://debian.linux.org.tw/ubuntu/dists/bionic-proposed/universe/i18n/Translation-en.xz File has unexpected size (327664 != 329484). Mirror sync in progress? [IP: 140.112.8.139 80]
  23. Hashes of expected file:
  24. - Filesize:329484 [weak]
  25. - SHA256:f13af6c9027a7e97150e175c92448b3772c7f775b5e2b410426e63a98e96f7da
  26. - SHA1:11a8dd24e0ac988101b802ae969bcfb2ebc529c3 [weak]
  27. - MD5Sum:e1fa3590f54dcf752ecc67556275f67e [weak]
  28. Release file created at: Mon, 29 Jan 2018 11:42:31 +0000
  29. E: Some index files failed to download. They have been ignored, or old ones used instead.