sudo apt-get update error ubuntu 12.04
249
How do I fix this "E: Type '*' is not known on line * in source list ..." update error?
65099
Unable to install any updates through update manager/apt-get upgrade
133
How can I fix a 404 Error when using a PPA or updating my package lists?
13720
apt-get update fails to fetch files, “Temporary failure resolving …” error
73032
Installing apt-get
130118
Ubunutu 18.04 Updates 404 error
108510
apt-get update very slow, stuck at "Waiting for headers"
40885
What should I do when I got the KEYEXPIRED error message after an apt-get update?
106931
How to undo sudo add-apt-repository?
43917
What is the difference between apt-get update and upgrade?
69960
What is sudo apt-get -f install?
44313
How to run "sudo apt-get update" through proxy in commandline?
144036
sudo apt-get curl and sudo apt-get wget gives "Invalid operation"
127895
403 Forbidden error in sudo apt-get upgrade ubuntu 17.4
74227
dpkg error when using apt-get install
44683
Problem with sudo apt update in Ubuntu 18.04: Post-Invoke-Success if /usr/bin/test -w /var/lib/command-not-found/
49149
How do I solve "Unable to fetch some archives, maybe run apt-get update or try with --fix-missing" error?