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Similar to this question I cannot seem to install anything through terminal as it spits back the error: E: The repository 'http://ppa.launchpad.net/webupd8team/brackets/ubuntu focal Release' does not have a Release file.

Looking at the other question, it suggests removing the ppa, which I tried:

sudo add-apt-repository --remove ppa:launchpad.net/webupd8team/brackets/ubuntu

Cannot add PPA: 'ppa:~launchpad.net/webupd8team/brackets/ubuntu'.
ERROR: '~launchpad.net' user or team does not exist.

Also, when I do try to install something, the original error is:

   E: The repository 'http://ppa.launchpad.net/webupd8team/brackets/ubuntu focal 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.

Please note this issue was happening before I switched to kbuntu as well

If anyone has a solution for this, I'd greatly appreciate a helping hand, thanks!

Artur Meinild
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Nick
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  • You'll want to look at the files in your /etc/apt/sources.list.d/ directory and find the one that references that particular PPA. From there you can comment out the repo, rename the file to something not ending in .list, or delete the file altogether. Once done, then you can sudo apt update and things should be a little bit better. – matigo Feb 03 '22 at 09:04
  • PPA's are 3rd party package sources; and all security checks are on you to perform before adding. A PPA that ended support in 2018 to me would be a reason to not add it; let alone the fact that it doesn't support focal or 20.04 (it didn't exist in 2018..) Did you check https://launchpad.net/~webupd8team/+archive/ubuntu/brackets before adding? – guiverc Feb 03 '22 at 09:12
  • The equivalent command for your case would be sudo add-apt-repository --remove ppa:webupd8team/brackets – muru Feb 03 '22 at 09:37

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