Unable to use package manager due to "exclusive lock" error
728
Unable to lock the administration directory (/var/lib/dpkg/) is another process using it?
11166
"Require Installation Of Untrusted Packages" while upgrading with the update manager
73560
Item cannot be installed or removed until the package catalogue is repaired
1632
How do I fix a "Failed to download package files" error?
108531
"E: Sub-process /usr/bin/dpkg returned an error code (1) " What does this mean?
65
What can I do if a repository/PPA does not have a Release file?
132954
Software Uses SQLite and Has Frequent DB Lock Errors. Zero Access to Code. Anything we can do?
135575
How to fix a "Failed to fetch binary-armhf/Packages" error during apt-get update?
119323
"Unable to locate package" errors for all software
5025
E:Error, pkgProblemResolver::Resolve generated breaks, this may be caused by held packages
150033
E: Sub-process /usr/bin/dpkg returned an error code (1) for almost all updates
35120
Why I'm seeing a lock besides the partition I'm trying to modify with gparted?
19120
What is more reliable - apt-mark or APT-pin (/etc/apt/preferences.d/pin) for version locking?
38277
Ubuntu - saying your security settings have blocked an application from running with an out-of-date version of java
13399
Why can I no longer (un)install packages via apt-get after doing a partial dist-upgrade?
1520
How to install software or upgrade from an old unsupported release?
118661
How to solve apt "package cannot be configured because package is in a different version" errors?