Should I delete all PPAs to fix failed updates on Ubuntu 18.04?

[member 428835]

Hi PF

On Ubuntu 18.04 when I try and run software updates I get the error "Failed to download repository information". When I run apt-get in terminal I get

E: The repository 'http://ppa.launchpad.net/blahota/texstudio/ubuntu bionic Release' does not have a Release file.

N: Updating from such a repository can't be done securely, and is therefore disabled by default.

N: See apt-secure(8) manpage for repository creation and user configuration details.

E: The repository 'http://ppa.launchpad.net/mc3man/gstffmpeg-keep/ubuntu bionic Release' does not have a Release file.

N: Updating from such a repository can't be done securely, and is therefore disabled by default.

N: See apt-secure(8) manpage for repository creation and user configuration details.

E: The repository 'http://ppa.launchpad.net/q-quark/equalx/ubuntu bionic Release' does not have a Release file.

N: Updating from such a repository can't be done securely, and is therefore disabled by default.

N: See apt-secure(8) manpage for repository creation and user configuration details.

Any ideas? I'm thinking its a PPA issue. In Software Updates under Other Software should I delete all http://ppa.launchpad packages?

 

[jack action]

Based on this answer, the PPA you've added does not support your version of Ubuntu.

Checking the first one (texstudio), it seems to be the case. Only Ubuntu versions 12.04, 14.04, 14.10, 15.04 are supported. (Click the 'Technical details about this PPA' link to see this info)

 

[pbuk]

I'm thinking its a PPA issue.

Given the error messages that's a fairly safe deduction

In Software Updates under Other Software should I delete all http://ppa.launchpad packages?

Either that, or if you need a newer version than what is in the bionic repo then seek out actively maintained PPAs: for instance for texstudio the one linked from https://www.texstudio.org/

Or if my guess that you have just upgraded from 16.04 (which reaches EOL this month) is correct, delete all the PPAs and upgrade on through to 20.04 for another 2 years of support (and more recent versions of packages, although focal is still on 2.12.22 for texmate so if you want v3 you will still need Sundermeyer's PPA).