E: Type 'See' is not known on line 4 in source list /etc/apt/sources.list
2694
How do I remove a malformed line from my sources.list?
3298
How do I resolve unmet dependencies after adding a PPA?
70568
dpkg: unrecoverable fatal error, aborting: files list file for package 'linux-generic' is missing final newline
60835
dpkg: error: failed to open package info file `/var/lib/dpkg/available' for reading
41519
What can I do if a package is not available on the newest version of Ubuntu (18.04) but is available on older versions?
118754
Package dependencies cannot be resolved
86185
How to install a list of packages using apt-get?
8722
How to make apt recognize an installed tar package?
130358
How to build all my installed package from sources?
41054
How can I check the available version of a package in the repositories?
59119
apt-get, unmet dependencies, ... "but it is not going to be installed"
49149
How do I solve "Unable to fetch some archives, maybe run apt-get update or try with --fix-missing" error?
12773
The requested package is unknown
11039
Invalid filename extension in apt sources.list
18926
Type 'sudo' is not known in source list
113026
What happened to /etc/apt/apt.conf?
110536
files list file for package 'libvo-aacenc0:amd64' is missing final newline