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Can't update software in 12.10. Get the "Failed to download repository information" with the following below. Tried searching with these responses, but to no avail. Any ideas?

W:Failed to fetch  404  Not Found
, W:Failed to fetch  404  Not Found
, E:Some index files failed to download. They have been ignored, or old ones used instead.
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marked as duplicate by Mitch, bcbc, Raja, Luis Alvarado Apr 28 '13 at 15:01

This question was marked as an exact duplicate of an existing question.

you might try by changing to other server. – Raja Apr 27 '13 at 15:12

As I know it means that this ppa is offline or not working. So you have to delete this PPA by ppa-purge or by gui tool Y PPA manager

To install Y PPA manager:

sudo add-apt-repository ppa:webupd8team/y-ppa-manager

sudo apt-get update

sudo apt-get install y-ppa-manager

And then find Gwibber PPA and remove it.

P.S. But Gwibber ppa is have to work.

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