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I just started using Ubuntu so please give me an explained answer.

I was trying to install macbuntu theme in my Ubuntu 16.10. I did the first step which was 

sudo add-apt-repository ppa:noobslab/macbuntu

This step worked fine. Next when I did,

sudo apt-get update

I got the error

W: The repository 'http://ppa.launchpad.net/docky-core/stable/ubuntu yakkety Release' does not have a Release file.
N: Data from such a repository can't be authenticated and is therefore potentially dangerous to use.
N: See apt-secure(8) manpage for repository creation and user configuration details.
E: Failed to fetch http://ppa.launchpad.net/docky-core/stable/ubuntu/dists/yakkety/main/binary-amd64/Packages  404  Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.

These are just the last few lines which gives the error.

How do I solve this?

EDIT : This is the contents of the sources.list.d directory 

    docky-core-ubuntu-stable-yakkety.list
    docky-core-ubuntu-stable-yakkety.list.save
    noobslab-ubuntu-macbuntu-yakkety.list
    noobslab-ubuntu-macbuntu-yakkety.list.save
    webupd8team-ubuntu-java-yakkety.list
    webupd8team-ubuntu-java-yakkety.list.save
    webupd8team-ubuntu-sublime-text-3-yakkety.list
    webupd8team-ubuntu-sublime-text-3-yakkety.list.save

Output of lsb_release -a command 

    No LSB modules are available.
    Distributor ID: Ubuntu
    Description:    Ubuntu 16.10
    Release:    16.10
    Codename:   yakkety
Zanna
  • 70,465
Sriram R
  • 153

1 Answers1

0

Follow the steps

 cd /etc/apt/sources.list.d/

 sudo -H gedit noobslab-ubuntu-macbuntu-yakkety.list

A file will open and first line will be something like this

deb http://ppa.launchpad.net/noobslab/macbuntu/ubuntu yakkety main

replace yakkety with xenial so that this line becomes 

deb http://ppa.launchpad.net/noobslab/macbuntu/ubuntu xenial main

save and exit the file and 

sudo apt-get update

Now try to install mac theme using this answer

For removing mac theme:

In case installing mac theme is not supported by your system, uninstall using:

sudo apt-get install ppa-purge
sudo ppa-purge ppa:noobslab/macbuntu
sudo apt-get update

OR

sudo apt-add-repository remove ppa:noobslab/macbuntu
Community
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Rahul
  • 1,673
  • This may work, but it may break the system as well. – Pilot6 Feb 15 '17 at 10:45
  • It is showing as a read only file .How do i save the changes? And i have more than one entry here of the exact same code. Should I delete the rest. – Sriram R Feb 15 '17 at 10:47
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    @SriramR I fixed the command. But beware of consequences. This theme is not supposed to be used on 16.10. – Pilot6 Feb 15 '17 at 10:47
  • @SriramR: You can always uninstall mac theme if it does something nasty to your systmem. And use command updated by Pilot6 – Rahul Feb 15 '17 at 10:53
  • Okay I will try this. Can you please give me the commands for uninstalling just in case something happens? – Sriram R Feb 15 '17 at 10:57
  • @SriramR: see updated answer – Rahul Feb 15 '17 at 11:01
  • @Rahul I think ppa-purge is a better choice, since it will restore some replaced packages. Only purge may not be good enough. – Pilot6 Feb 15 '17 at 11:01
  • I have chaged yakkety to xenial . It still doesnt work .Dammit. I have given up :( – Sriram R Feb 15 '17 at 11:03
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    @SriramR That was initially not a great idea to install 16.10 for a newbie. Install 16.04 LTS. – Pilot6 Feb 15 '17 at 11:04
  • @SriramR: What error message you are getting. And you should listen to Pilot6's last comment, 16.04 is better choice for you. – Rahul Feb 15 '17 at 11:07
  • Yeah I'm gonna install 16.04LTS now. I thought I was installing 16.10 tho . Is it enough if I go into my Windows 10 and delete the partition which has linux to remove this 16.10 version? – Sriram R Feb 15 '17 at 15:05