this is a similar issue to this question by me. I just got a fresh install of EOS 5.1, so I am starting from scratch. I am trying to get Elementary Tweaks so I can install a custom theme, but when I try to add the repository I get this issue:

$  sudo add-apt-repository ppa:philip.scott/elementary-tweaks
 system settings panel for elementary OS that lets you easily and safely customise your desktop's appearance  https://github.com/elementary-tweaks/elementary-tweaks
 More info: https://launchpad.net/~philip.scott/+archive/ubuntu/elementary-tweaks
Press [ENTER] to continue or Ctrl-c to cancel adding it.

Hit:1 http://packages.elementary.io/appcenter bionic InRelease
Hit:2 http://ppa.launchpad.net/elementary-os/stable/ubuntu bionic InRelease                                                                                 
Hit:3 http://us.archive.ubuntu.com/ubuntu bionic InRelease                                                                                              
Get:4 http://us.archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]                                                                            
Get:5 http://security.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]                                                           
Ign:6 http://ppa.launchpad.net/mpstark/elementary-tweaks-daily/ubuntu bionic InRelease                                                           
Get:7 http://us.archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]      
Hit:8 http://ppa.launchpad.net/elementary-os/os-patches/ubuntu bionic InRelease                                                                 
Get:9 http://ppa.launchpad.net/philip.scott/elementary-tweaks/ubuntu bionic InRelease [15.9 kB]
Err:10 http://ppa.launchpad.net/mpstark/elementary-tweaks-daily/ubuntu bionic Release
  404  Not Found [IP: 80]
Get:11 http://ppa.launchpad.net/philip.scott/elementary-tweaks/ubuntu bionic/main amd64 Packages [820 B]
Get:12 http://ppa.launchpad.net/philip.scott/elementary-tweaks/ubuntu bionic/main i386 Packages [828 B]
Get:13 http://ppa.launchpad.net/philip.scott/elementary-tweaks/ubuntu bionic/main Translation-en [304 B]
Reading package lists... Done                        
E: The repository 'http://ppa.launchpad.net/mpstark/elementary-tweaks-daily/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.

It is giving similar error messages to the other question. Is this because there is not yet a tweaks version for EOS 5.1 Hera??? Any help is appreciated. I don't know if I should mention this on the Elementary Tweaks GitHub page or what. Thanks in advance!


I checked the README on the GitHub page, and it says it's for EOS Juno. I thought this would work because Hera is just an update to Juno, not an entirely new copy. Oh, well.

  • It should work for elementary OS Hera also - I use Hera and it is ok. Can you edit your question and put the lines that you typed into terminal in order to receive the log listed above?
    – Bo rislav
    Commented Dec 31, 2019 at 0:41

1 Answer 1


This one: E: The repository 'http://ppa.launchpad.net/mpstark/elementary-tweaks-daily/ubuntu bionic Release' does not have a Release file.

Seems like a fairly old Elementary-tweaks ppa to me. It's erroring because it's not really up and running for Ubuntu Bionic. Taking a quick look over the launchpad says it doesn't work for anything over eOS Freya(0.3), you should remove it with sudo add-apt-repository --remove ppa:mpstark/elementary-tweaks-daily followed by sudo apt update

The other one you added works fine for me on Hera 5.1

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