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I accidentally removed a ppa and now I am unable to download any app from app center. How can resolve it? Also I don't remember the ppa, it was just the last one in the list.

  • How did you remove it? From command line? – Ron Aug 26 '15 at 17:35
  • no from the software and updates app – Abhinav Pratap Singh Aug 26 '15 at 18:02
  • I was removing some ppas that I added to use gnome 13.16. – Abhinav Pratap Singh Aug 26 '15 at 18:04
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If you added the PPA from the command line, you should be able to find (and re-run) the command with history | grep add-apt-repository.

But there are no "default PPA settings". They are personal package archives; the default is no PPAs, so it's unlikely removing one would cause your symptom "unable to download any app from app center."

If you need to replace your default main source settings (e.g. /etc/apt/sources.list), this online tool can generate the files for you: http://repogen.simplylinux.ch/

  • Thanks for the answer. But it started working after a reboot. – Abhinav Pratap Singh Aug 27 '15 at 12:06

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