Bdtyktl

I just installed Ubuntu Gnome 16.04. I told it to save my documents - which worked. Some software had to be reinstalled. Now when I run sudo apt-get update I see this:

W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Translations (main/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (restricted/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (restricted/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (restricted/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Translations (restricted/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Translations (restricted/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target DEP-11 (restricted/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target DEP-11-icons (restricted/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (multiverse/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (multiverse/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (multiverse/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Translations (multiverse/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Translations (multiverse/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target DEP-11 (multiverse/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target DEP-11-icons (multiverse/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: The repository 'http://extras.ubuntu.com/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.

W: http://dl.google.com/linux/chrome/deb/dists/stable/Release.gpg: Signature by key 4CCA1EAF950CEE4AB83976DCA040830F7FAC5991 uses weak digest algorithm (SHA1)

W: http://repo.sinew.in/dists/stable/InRelease: Signature by key B6DA722E2E65721AF54B93966F7565879798C2FC uses weak digest algorithm (SHA1)

E: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/xenial/main/source/Sources  404  Not Found [IP: 91.189.92.152 80]

E: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/xenial/main/binary-amd64/Packages  404  Not Found [IP: 91.189.92.152 80]

E: Failed to fetch http://extras.ubuntu.com/ubuntu/dists/xenial/main/binary-i386/Packages  404  Not Found [IP: 91.189.92.152 80]

E: Some index files failed to download. They have been ignored, or old ones used instead.

W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (main/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (main/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Translations (main/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Translations (main/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target DEP-11 (main/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target DEP-11-icons (main/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (restricted/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (restricted/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (restricted/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Translations (restricted/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Translations (restricted/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target DEP-11 (restricted/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target DEP-11-icons (restricted/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (multiverse/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (multiverse/binary-i386/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Packages (multiverse/binary-all/Packages) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Translations (multiverse/i18n/Translation-en_GB) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target Translations (multiverse/i18n/Translation-en) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target DEP-11 (multiverse/dep11/Components-amd64.yml) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

W: Target DEP-11-icons (multiverse/dep11/icons-64x64.tar) is configured multiple times in /etc/apt/sources.list:33 and /etc/apt/sources.list:87

Is there an automated way to fix this?

Recent, up-to-date solution

I wrote a Python script to automate this task. You can find the most recent version here.

Installation:

1. 
   

   Install the prerequisites:

   
   
   

   sudo apt install python3-apt
   
   

   
   



2. Download the ZIP bundle (aptsources-cleanup.zip) from the latest release.

Usage:

1. sudo python3 -OEs aptsources-cleanup.zip




2. Follow the instructions appearing on the screen.

Historical, outdated solution

This is an older, shorter and simpler version more suitable to inline quotation:

#!/usr/bin/env python3

"""

Detects and interactively deactivates duplicate Apt source entries.



Usage: sudo python3 apt-remove-duplicate-source-entries.py

"""



from __future__ import print_function

import aptsources.sourceslist



EMPTY_COMPONENT_LIST = (None,)



def get_duplicates(sourceslist):

    """

    Detects and returns duplicate Apt source entries.

    """



    sentry_map = dict()

    duplicates = list()

    for se in sourceslist.list:

        if not se.invalid and not se.disabled:

            for c in (se.comps or EMPTY_COMPONENT_LIST):

                key = (se.type, se.uri, se.dist, c)

                previous_se = sentry_map.setdefault(key, se)

                if previous_se is not se:

                    duplicates.append((se, previous_se))

                    break



    return duplicates





if __name__ == '__main__':

    try:

        input = raw_input

    except NameError:

        pass



    sourceslist = aptsources.sourceslist.SourcesList(False)

    duplicates = get_duplicates(sourceslist)



    if duplicates:

        for dupe, orig in duplicates:

            print(

                'Overlapping source entries:n'

                '  1. {0}: {1}n'

                '  2. {2}: {3}n'

                'I disabled the latter entry.'.format(

                    orig.file, orig, dupe.file, dupe),

                end='nn')

            dupe.disabled = True



        print('n{0} source entries were disabled:'.format(len(duplicates)),

            *[dupe for dupe, orig in duplicates], sep='n  ', end='nn')

        if input('Do you want to save these changes? (y/N) ').upper() == 'Y':

            sourceslist.save()



    else:

        print('No duplicated entries were found.')

It takes no parameter and works on all /etc/apt/sources.list* with the help of the python3-apt package. Lines don't have to be exact duplicates (even after normalization) but its enough if type, URI, suite and at least one component overlap.

I'm not sure the equality test is correct in all corner cases (e. g. various “option” strings). Please leave your comments and forks on GitHub.

For me (16.04 LTS) going to

System settings >> Software and Updates >> Other Software and removing each duplicate entry from the list worked fine.

Reset your repositories like this

1. sudo rm /etc/apt/sources.list


2. sudo software-properties-gtk


3. Pick your options


4. Save

(P.S. I had the same problem today after updating Ubuntu 15.10 to Ubuntu 16.04.)

I encountered this for 18.10. I used Synaptic to check the repositories and then deleted the ones I thought were duplicates. Result: no more error messages.