W: The repository 'cdrom://Ubuntu 16.04.3 LTS _Xenial Xerus_ - Release amd64 (20170801) xenial Release' does not have a Release file
22164
Problem with sudo apt get update: The repository cdrom... does not have a Release file
131270
What means "unable to make backup link of /binary before installing new version: No such file or directory"?
46419
The repository 'http://dl.google.com/linux/chrome/deb stable Release' does not have a Release file
151509
How to fix error W: Target Packages (main/binary-amd64/Packages) is configured multiple times in my sources.list file?
143645
How to fix "*:i386 cannot be configured because *:amd64 is in a different version"?
92807
There's an issue with an Alpha/Beta Release of Ubuntu, what should I do?
139431
How to work around "Release file expired" problem on a local mirror
44751
How do I install xulrunner?
52190
How and when is old-releases.ubuntu.com updated?
2236
Why don't the Ubuntu repositories have the latest versions of software?
58931
16.04 Upgrade: Failed to fetch Empty files can't be valid archives
47780
How to install R on Ubuntu 16.04 Xenial?
90212
'http://download.opensuse.org/repositories/home:/strycore/xUbuntu_16.04 ./ Release' is not signed
32220
How to resolve Unmet dependencies error?
20817
Missing new file in Ubuntu 13.04
52444
dpkg: error: parsing file '/var/lib/dpkg/updates/0045' near line 0:
32987
Could not open file archive.ubuntu.com_ubuntu_dists_eoan-updates_restricted_cnf_Commands-amd64.xz