Duplicate sources error while updating
5407
How to fix "W: Duplicate sources.list entry"?
118978
Not all updates can be installed: partial upgrade
25606
Pacman: error: duplicated database entry
32220
How to resolve Unmet dependencies error?
151656
Installing from source. How to resolve dependencies without destroying the package manager
154420
"Failed to download repository information" error
151233
Why are duplicates not being merged?
90937
apt-get update errors
133
How can I fix a 404 Error when using a PPA or updating my package lists?
71646
Duplicates of an outdated question
249
How do I fix this "E: Type '*' is not known on line * in source list ..." update error?
82977
CUMULATIVE_LIMIT_USAGE error on UPDATE of List
36244
Duplicate flag links in 10k tools are broken
10023
'Some index files failed to download' while updating
6173
"method driver /usr/lib/apt/methods/https could not be found" update error
133201
Maven build [WARNING] we have a duplicate class
83074
Why does the separation of update and upgrade even exist?