APT Upgrade – 16.04 Upgrade Failed to Fetch Empty Files Can’t Be Valid Archives

16.04aptupgrade

After upgrading from 15.10 to 16.04, I am receiving the following error on apt-get update:

Reading package lists... Done
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/restricted/source/Sources  Empty files can't be valid archives
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/universe/source/Sources  Empty files can't be valid archives
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/multiverse/source/Sources  Empty files can't be valid archives
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/restricted/binary-amd64/Packages  Empty files can't be valid archives
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/restricted/binary-i386/Packages  Empty files can't be valid archives
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/restricted/i18n/Translation-en  Empty files can't be valid archives
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/universe/binary-amd64/Packages  Empty files can't be valid archives
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/universe/binary-i386/Packages  Empty files can't be valid archives
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/universe/i18n/Translation-en  Empty files can't be valid archives
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/multiverse/binary-amd64/Packages  Empty files can't be valid archives
E: Failed to fetch http://security.ubuntu.com/ubuntu/dists/xenial-security/multiverse/binary-i386/Packages  Empty files can't be valid archives
E: Some index files failed to download. They have been ignored, or old ones used instead.

Does anyone know how to solve this error?

Best Answer

Go to "Ubuntu Software Center->Edit->Software Source"
select from "Download From" and choose "Other..." and click "Select Best Server". It will take some time... And it comes up with best server for you. Then chose that server and type command below again,

sudo apt-get update
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