W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used
6809
How do I fix the GPG error "NO_PUBKEY"?
26308
How to solve "Unable to find expected entry 'restricted/binary-1386/Packages' Wrong sources.list entry or malformed file"?
107340
"Invalid signature file" when attempting to run a .jar
120
How do I restore the default repositories?
24665
Unable to log in with your OpenID provider: Message signature was incorrect on Area51 only
11166
"Require Installation Of Untrusted Packages" while upgrading with the update manager
65
What can I do if a repository/PPA does not have a Release file?
48809
"The upgrade has aborted" error, how to proceed?
4450
How can I reproduce the error "package... needs to be reinstalled, but I can't find an archive for it" for testing?
23303
How can I solve "Be aware that removing the lock file is not a solution and may break your system"?
15183
Elementary OS PPA gives “The repository does not have a Release file.” error
139103
Is is possible to skip the confirmation step while adding a repository?
4477
Getting "CHECKOUT can only be performed on a version resource" when trying to commit using Eclipse subversive plugin
93574
E: Some index files failed to download. They have been ignored, or old ones used instead after apt-get update
10023
'Some index files failed to download' while updating
119273
Code Sign error: a valid provisioning profile matching the application's Identifier ... could not be found
39625
The apk must be signed with the same certificates as the previous version