Could not get lock /var/cache/apt/archives/lock - open
728
Unable to lock the administration directory (/var/lib/dpkg/) is another process using it?
6105
What is the easiest way to resolve apt-get BADSIG GPG errors?
6809
How do I fix the GPG error "NO_PUBKEY"?
23286
dpkg: error: dpkg status database is locked by another process
59119
apt-get, unmet dependencies, ... "but it is not going to be installed"
146117
Update locked within terminal
154420
"Failed to download repository information" error
145400
Error when trying sudo apt-get update - Python related?
32186
dpkg-deb: error: archive ... has premature member 'control.tar.xz' before 'control.tar.gz', giving up
39053
16.04 apt-get update hangs
34016
Why is apt-get unable to locate bitcoin and bitcoin-qt package?
90937
apt-get update errors
4248
How to fix apt: Signature by key uses weak digest algorithm (SHA1)?
87899
Why are there deb files in /var/cache/apt/archives/?
38795
How does APT work (apt-get, cache, search)
44044
apt-get install not work at all
84309
How to resolve E: Internal Error when using apt-get remove?