E: Could not get lock /var/lib/dpkg/lock-frontend. It is held by process 5200 (apt)
728
Unable to lock the administration directory (/var/lib/dpkg/) is another process using it?
36886
How to install a deb file, by dpkg -i or by apt?
98903
How to recreate /var/lib/dpkg/status?
91611
Unable to use package manager due to "exclusive lock" error
4124
I cannot run apt update properly - apt update hangs
7181
apt-get is stuck at "Fetched XXKb in XXsec"
21062
dpkg: error: parsing file '/var/lib/dpkg/available' near line 0
40885
What should I do when I got the KEYEXPIRED error message after an apt-get update?
137317
libdvd-pkg: `apt-get check` failed, you may have broken packages. Aborting
56150
Can't upgrade/update ubuntu 18.04 as apt/dpkg error is showing up
127196
"Error processing package" - apt upgrade cannot run due to package configuration errors
150033
E: Sub-process /usr/bin/dpkg returned an error code (1) for almost all updates
6105
What is the easiest way to resolve apt-get BADSIG GPG errors?
7460
E: Unable to correct problems, you have held broken packages
124152
Mercurial stuck "waiting for lock"
75071
failing to install oracle-java7-installer,displaying 'E: Sub-process /usr/bin/dpkg returned an error code (1)'
65341
dpkg reports problems configuring huge list of python-related packages after any APT command