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Hi i am trying to update the ubuntu 16.04 it's showing the following error 

W: The repository 'http://ppa.launchpad.net/n-muench/programs-ppa/ubuntu xenial 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/n-muench/programs-ppa/ubuntu/dists/xenial/main/binary-amd64/Packages  404  Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.

i cant install filezilla without fix this error. i have tried all the solution but it's give's me the same error please help me to fix this error.

N0rbert
  • 103,263
vinoth mathew
  • 13

1 Answers1

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The PPA in your question does not provide packages for xenial.
You should remove it.

sudo apt-get install ppa-purge
sudo ppa-purge ppa:n-muench/programs-ppa
sudo add-apt-repository -r ppa:n-muench/programs-ppa

Also understanding how PPA works may help - see "What are PPAs and how do I use them?".

N0rbert
  • 103,263