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How can I fix a 404 Error using a PPA?

How do I fix this error?

 W:Failed to fetch http://ppa.launchpad.net/deluge-team/ppa/ubuntu/dists/quantal/main/source/Sources  404  Not Found,
 W:Failed to fetch http://ppa.launchpad.net/deluge-team/ppa/ubuntu/dists/quantal/main/binary-amd64/Packages  404  Not Found,
 W:Failed to fetch http://ppa.launchpad.net/deluge-team/ppa/ubuntu/dists/quantal/main/binary-i386/Packages  404  Not Found,
 E:Some index files failed to download. They have been ignored, or old ones used instead.

Error even on Update Manager

The same error occur when I tried,

 sudo apt-get update && sudo apt-get upgrade
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marked as duplicate by Jorge Castro, Tom Brossman, fossfreedom Dec 25 '12 at 23:51

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It could be that the ppa deluge-team is not working properly so better remove that ppa from the sources.list or via add-apt-repository --remove theDelugeTeamPPA and sudo apt-get update again. –  nickanor Dec 25 '12 at 12:52
    
I cannot find it in > sources.list I don't know if it works for the repository removal. this works: > sudo add-apt-repository -r ppa:deluge-team/ppa I just found out. –  owl Dec 25 '12 at 12:58
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2 Answers 2

up vote 2 down vote accepted

There is no Deluge packages on Quantal, as you can see on Launchpad's PPA page. To use Deluge, you need to edit the Deluge PPA entry to search packages for Precise in software-properties-gtk, changing the Distribution: field from quantal to precise:

Distribution Changing

After that, sudo apt-get update will show no errors about this repository.

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How would you do this from the command line? –  Jeroen Landheer Oct 30 '13 at 14:42
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I have found the fix. Use this command on terminal.

sudo add-apt-repository -r ppa:deluge-team/ppa

(THIS IS NOT RECOMMENDED, SINCE IT WILL REMOVE THE REPOSITORY)

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This will remove the repository. Is it what you want? –  João Santana Dec 25 '12 at 12:58
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