I want to install Docky. How to remove "Err:5 http://ppa.launchpad.net/docky-core/stable/ubuntu focal Release 404 Not Found [IP: 91.189.95.85 80]"?

Question

I want to install "Docky" on Ubuntu 20.04 but, every time I try to add the source repository, I receive an error.

This is how I'm trying to add the repository:

sudo add-apt-repository ppa:docky-core/stable

This is the result:

Ign:1 http://ppa.launchpad.net/docky-core/stable/ubuntu focal InRelease                                                                                                               
Get:2 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB]                                                                                                             
Hit:3 http://in.archive.ubuntu.com/ubuntu focal InRelease                                                                                                                         
Err:5 http://ppa.launchpad.net/docky-core/stable/ubuntu focal Release                                  
  404  Not Found [IP: 91.189.95.85 80]
Hit:6 http://in.archive.ubuntu.com/ubuntu focal-updates InRelease                                      
Hit:7 http://in.archive.ubuntu.com/ubuntu focal-backports InRelease    
Hit:8 https://dl.winehq.org/wine-builds/ubuntu focal InRelease
Reading package lists... Done
E: The repository 'http://ppa.launchpad.net/docky-core/stable/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.

How can I resolve this error?

The PPA does not appear to be maintained anymore as the last update was over four years ago. That said, you may be able to use this answer to install Docky on your system — matigo, Sep 28 '21 at 04:27
Docky is no longer maintained. I would suggest latte dock as it has all of the same features as far as I'm aware. You should be warned if you use the answer linked by @matigo that it could break your system because those dependencies are for another version of Ubuntu. — Nmath, Sep 28 '21 at 04:32
@Nmath you have no confidence in N0rbert's answer? That, too, was for 20.04 (though the dependencies are for 18.04) — matigo, Sep 28 '21 at 04:37
@matigo I'm sure it works, but when you pull in dependencies from an older version of Ubuntu, the longer you cling to unmaintained software, the higher the chances that some new software needs a dependency that conflicts with the one you manually installed an older version of. This is a matter of can do vs should do. IMO there's no good reason to force unmaintained software and potentially conflicting dependencies when there exists well maintained software that does exactly the same thing — Nmath, Sep 28 '21 at 04:56
You can also use Plank, which is made with GTK (unlike Latte dock, which is for KDE). — Archisman Panigrahi, Sep 28 '21 at 05:20
Also see https://askubuntu.com/questions/866901/what-can-i-do-if-a-repository-ppa-does-not-have-a-release-file — Archisman Panigrahi, Sep 28 '21 at 05:25
It is a good point to use Plank if you are using GNOME since it will require fewer dependencies with that DE — Nmath, Sep 28 '21 at 05:41
Does this answer your question? Install docky in Ubuntu 20.04 — N0rbert, Sep 28 '21 at 17:24
Does this answer your question? What can I do if a repository/PPA does not have a Release file? — karel, Sep 29 '21 at 00:24

I want to install Docky. How to remove "Err:5 http://ppa.launchpad.net/docky-core/stable/ubuntu focal Release 404 Not Found [IP: 91.189.95.85 80]"?

0 Answers0