When i run update or add a software repositary , error Failed to download repository information Check your Internet connection.

Asked by Kamil Nadeem

Sir when i run update manager or add a repository in the software sources , it updates cache but before completion it shows error

 Failed to download repository information
Check your Internet connection.

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

for instance i Added ‘ppa:jfi/ppa’ to my Software Sources, it says update cache then shows the same error as above , but my Internet connection is working fine ,
when i use this command "sudo apt-get update" in terminal it giver the error below.
W: Failed to fetch http://ppa.launchpad.net/lorenzo-carbonell/atareao/ubuntu/dists/natty/main/binary-i386/Packages 404 Not Found

 help please !

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Ubuntu update-manager Edit question
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Kamil Nadeem
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Kamil Nadeem (nadeemsdreamz) said :
#1

I solved it myself, by some mistake I made identical repository of this http://ppa.launchpad.net/atareao/atareao/ubuntu and the main one. I deleted both and Voila it's working well.