when i typed sudo apt-get update in terminal, it gave me this error:  E: Malformed line 1 in source list /etc/apt/sources.list.d/gazebo-latest.list (dist) E: The list of sources could not be read.   I looked into gazebo-latest.list file. there is a line   deb http://packages.osrfoundation.org/gazebo/ubuntu quantal main   How can i fix this problem
236
I have unistalled and reinstalled the Ubuntu Software Center as per info I found in a similar thread and I got the same response about line 91 or something like that.  I just tried to upload a screen shot but since I'm new it won't allow me to.  I also can not figure out how to cut and paste anything so I have to hand type what the error screen says, both when I attempt to open the software center and nothing happens, when I try to enter commands into the terminal to uninstall, reinstall, whatever I get the same following:  COULD NOT INTITIALIZE THE PACKAGE INFORMATION An unresolvable problem occured while initializing the package information Please report t:his bug against the 'update-manager' package and include the following error message: 'E: Malformed line 91 in source list/etc/apt/sources.list (dist parse)  E: The list of sources could not be read.,  E: The package list of status file could not be parsed or opened.   How do I report bugs?  What can be done about this.  I have searched and everything everyone says to do leads me back to the same line error message.  So, I don't know how to get to line 91 in the source list; to tell you what it says. Sorry, I'm really new to this. That is what I need is to find out how to get there and fix what it says. I would really like to NOT have to re partition my hard drive and start from scratch, so I'm really looking forward to getting this problem solved. I need to be able to install new software.
95
The error I am having when trying to update my package list.  W: GPG error: http://download.opensuse.org ./ Release: The following signatures were invalid: KEYEXPIRED 1436387333  W: Failed to fetch http://ppa.launchpad.net/samrog131/ppa/ubuntu/dists/trusty/main/binary-amd64/Packages  404  Not Found  E: Some index files failed to download. They have been ignored, or old ones used instead.
27541
I was trying to install spotify for Ubuntu when this error appeared:  E: Type 'debo' is not known on line 1 in source list /etc/apt/sources.list.d/spotify.list E: The list of sources could not be read.   I don't know what to do to solve it.
96964
I'm trying to update from ubuntu 12.10 lately but I keep getting the "Failed to fetch" error.  W: Failed to fetch http://security.ubuntu.com/ubuntu/dists/quantal-security/Release  Unable to find expected entry 'independent/binary-amd64/Packages' in Release file (Wrong sources.list entry or malformed file)  W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/quantal/Release  Unable to find expected entry 'independent/source/Sources' in Release file (Wrong sources.list entry or malformed file)  W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/quantal-updates/Release  Unable to find expected entry 'independent/binary-amd64/Packages' in Release file (Wrong sources.list entry or malformed file)  W: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/quantal-backports/Release  Unable to find expected entry 'independent/binary-amd64/Packages' in Release file (Wrong sources.list entry or malformed file)  E: Some index files failed to download. They have been ignored, or old ones used instead.   I changed the server and deleted the source lists from /var/lib/apt/lists/ like some answers say but still. This is really annoying.
83208
I did: sudo apt-get update  I got this: Reading package lists... Done E: Could not get lock /var/lib/apt/lists/lock. It is held by process 1131 (packagekitd)  N: Be aware that removing the lock file is not a solution and may break your system.  E: Unable to lock directory /var/lib/apt/lists/  I used to just remove the lock file, but I've never seen that note before (did it break my system?)?? What do I do?
102459
Possible Duplicate:          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.     The same error occur when I tried,   sudo apt-get update &amp;&amp; sudo apt-get upgrade
56207
I'm trying to configure some proxies for a guest virtual machine and now I'm getting:  sudo apt-get update E: Syntax error /etc/apt/apt.conf.d/95proxy:4: Extra junk at end of file   The content of the file is:  cat /etc/apt/apt.conf.d/95proxy   Acquire::http::proxy  "http://10.0.0.60:3128/" Acquire::ftp::proxy "http://10.0.0.60:3128/" Acquire::https::proxy "http://10.0.0.60:3128/"
78346
I have deleted some files around /var/lib/dpkg/, namely:  /var/lib/dpkg/status /var/lib/dpkg/available /var/lib/dpkg/info/*   I understand Debian uses these files to keep some information about installed packages. Now when I do apt-get update, I get following error:  Reading package lists... Error! E: Could not open file /var/lib/dpkg/status - open  (2: No such file or directory) E: The package lists or status file could not be parsed or opened.   As I understand the , files located in /var are not supposed to be system-critical. Rater these should be temporary files, logs, caches, and similar.   Is there therefore a way to recreate the deleted files ?
2541
Greetings from Bangladesh. I am an intermediate user of Ubuntu OS. I am facing problem with apt update. I have searched online but could not find any answer to my problem so I am posting this question please help me.  Err:20 http://archive.ubuntu.com/ubuntu eoan-updates/restricted amd64 c-n-f Metadata   Could not open file /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_eoan-updates_restricted_cnf_Commands-amd64.xz - open (13: Permission denied) [IP: 91.189.88.152 80] Ign:35 http://archive.ubuntu.com/ubuntu eoan-updates/multiverse amd64 c-n-f Metadata Err:37 http://archive.ubuntu.com/ubuntu eoan-backports/main amd64 c-n-f Metadata   Could not open file /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_eoan-backports_main_cnf_Commands-amd64.xz - open (13: Permission denied) [IP: 91.189.88.152 80]   Reading package lists... Done E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/eoan-updates/restricted/cnf/Commands-amd64  Could not open file /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_eoan-updates_restricted_cnf_Commands-amd64.xz - open (13: Permission denied) [IP: 91.189.88.152 80] E: Failed to fetch http://archive.ubuntu.com/ubuntu/dists/eoan-backports/main/cnf/Commands-amd64  Could not open file /var/lib/apt/lists/partial/archive.ubuntu.com_ubuntu_dists_eoan-backports_main_cnf_Commands-amd64.xz - open (13: Permission denied) [IP: 91.189.88.152 80] E: Some index files failed to download. They have been ignored, or old ones used instead.   I have tried with         removing partial folder's content completely.   Cleaning apt by sudo apt clean   moving the lists to lists.old   then updating the apt      But without luck.
100260
I typed  sudo apt-get upgrade   And I got this  $ sudo apt-get upgrade Reading package lists... Done Building dependency tree        Reading state information... Done Calculating upgrade... Done The following packages will be upgraded:   bind9-host dnsutils google-chrome-stable libbind9-161 libdns-export1104   libdns1104 libirs161 libisc-export1100 libisc1100 libisccc161 libisccfg163   liblwres161 python3-distupgrade ubuntu-release-upgrader-core   ubuntu-release-upgrader-gtk 15 upgraded, 0 newly installed, 0 to remove and 0 not upgraded. Need to get 0 B/61.1 MB of archives. After this operation, 1,769 kB of additional disk space will be used. Do you want to continue? [Y/n]  dpkg: unrecoverable fatal error, aborting:  unknown system group 'smmsp' in statoverride file; the system group got removed before the override, which is most probably a packaging bug, to recover you can remove the override manually with dpkg-statoverride E: Sub-process /usr/bin/dpkg returned an error code (2)   Can any one throw any light on this?
37604
I know this is asked often but nothing seems to work for me. Every time I try to update I get the following:  sudo apt-get update Get:1 http://archive.ubuntu.com precise Release.gpg Get:2 http://ppa.launchpad.net precise Release.gpg Get:3 http://archive.ubuntu.com precise Release                             Get:4 http://ppa.launchpad.net precise Release.gpg                          Get:5 http://ppa.launchpad.net precise Release                               Ign http://archive.ubuntu.com precise Release                                E: GPG error: http://archive.ubuntu.com precise Release: The following signatures were invalid: NODATA 1 NODATA 2   The only way I can successfully execute   sudo apt-get update   is by removing ALL software sources (which is pointless).  Regardless of whatever software source I use (official ubuntu or some other PPA) I get the same errors.  So far I have tried:   Changing the server from MAIN to some other . . . no joy   The suggested fixes from , , , and .   Nothing seems to work. It seems that all my key data is missing and I can't figure out how to get it back.  Any help would be very appreciated !
24696
Been trying to install git-core package for almost more than half a day now. Every time I do, I get this error:  dpkg: error: parsing file '/var/lib/dpkg/available' near line 0: newline in field name `../../../../../share/pyshared/UpdateManager/Core/__init__.py'   I've also tried running sudo apt-get update and sudo apt-get install --fix-missing. Even tried rebooting and cleaning the apt-get cache, still doesnt work.
20789
I have accidentally removed apt-get, how do I reinstall it?  $ sudo apt-get update sudo: apt-get: command not found  $ sudo dpkg-reconfigure apt /usr/sbin/dpkg-reconfigure: apt is broken or not fully installed    I would like to mention I do not want to reinstall Linux!
51781
i am a beginner in Ubuntu and currently using Ubuntu 19.10 in terminal i used   apt-get update   and this error showed up  Reading package lists... Done E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied) E: Unable to lock directory /var/lib/apt/lists/ W: Problem unlinking the file /var/cache/apt/pkgcache.bin - RemoveCaches (13: Permission denied) W: Problem unlinking the file /var/cache/apt/srcpkgcache.bin - RemoveCaches (13: Permission denied)   how to solve this issue? i am using Ubuntu 19.10 on VMware Workstation 15 Pro and updated it at first lunch by using the "Software Update"
29717
Whenever I try to install or remove something using terminal it gives the following error message:  bluebird@bluebird:~$ sudo apt-get update sudo: /usr/lib/sudo/sudoers.so must be only be writable by owner sudo: fatal error, unable to load plugins bluebird@bluebird:~$ sudo apt-get remove vlc sudo: /usr/lib/sudo/sudoers.so must be only be writable by owner sudo: fatal error, unable to load plugins bluebird@bluebird:~$ sudo apt-get install apt-file sudo: /usr/lib/sudo/sudoers.so must be only be writable by owner sudo: fatal error, unable to load plugins
9527
I keep getting this warning whenever I try to run sudo apt-get update.  W: Duplicate sources.list entry http://archive.ubuntu.com/ubuntu/ precise-updates/main i386 Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_precise-updates_main_binary-i386_Packages) W: You may want to run apt-get update to correct these problems   Below is the output from /etc/apt/sources.list file:  deb http://archive.ubuntu.com/ubuntu precise main restricted deb-src http://archive.ubuntu.com/ubuntu precise main restricted  deb http://archive.ubuntu.com/ubuntu precise-updates main restricted deb-src http://archive.ubuntu.com/ubuntu precise-updates main restricted  deb http://archive.ubuntu.com/ubuntu precise universe deb-src http://archive.ubuntu.com/ubuntu precise universe deb http://archive.ubuntu.com/ubuntu precise-updates universe deb-src http://archive.ubuntu.com/ubuntu precise-updates universe  deb http://archive.ubuntu.com/ubuntu precise multiverse deb-src http://archive.ubuntu.com/ubuntu precise multiverse deb http://archive.ubuntu.com/ubuntu precise-updates multiverse deb-src http://archive.ubuntu.com/ubuntu precise-updates multiverse  deb http://archive.ubuntu.com/ubuntu precise-security main restricted deb-src http://archive.ubuntu.com/ubuntu precise-security main restricted deb http://archive.ubuntu.com/ubuntu precise-security universe deb-src http://archive.ubuntu.com/ubuntu precise-security universe deb http://archive.ubuntu.com/ubuntu precise-security multiverse deb-src http://archive.ubuntu.com/ubuntu precise-security multiverse   How do I fix it?
54551
I just installed a fresh version of Ubuntu 19.10 today, and the first thing I decided to do was to install GNU Screen, using sudo apt-get install screen. my output was: Reading package lists... Done Building dependency tree        Reading state information... Done E: Unable to locate package screen  I figured the package archives were not quite updated as it was a clean install so I tried sudo apt-get update. This is what I got: Get:1 http://security.ubuntu.com/ubuntu eoan-security InRelease [97.5 kB]       Err:2 http://au.archive.ubuntu.com/ubuntu eoan InRelease   Cannot initiate the connection to au.archive.ubuntu.com:80 (2001:388:30bc:cafe::beef). - connect (101: Network is unreachable) Could not connect to au.archive.ubuntu.com:80 (202.158.214.106), connection timed out Err:3 http://au.archive.ubuntu.com/ubuntu eoan-updates InRelease      Cannot initiate the connection to au.archive.ubuntu.com:80 (2001:388:30bc:cafe::beef). - connect (101: Network is unreachable) Err:4 http://au.archive.ubuntu.com/ubuntu eoan-backports InRelease   Cannot initiate the connection to au.archive.ubuntu.com:80 (2001:388:30bc:cafe::beef). - connect (101: Network is unreachable) Fetched 97.5 kB in 31s (3,106 B/s) Reading package lists... Done Building dependency tree        Reading state information... Done All packages are up to date. W: Failed to fetch http://au.archive.ubuntu.com/ubuntu/dists/eoan/InRelease  Cannot initiate the connection to au.archive.ubuntu.com:80 (2001:388:30bc:cafe::beef). - connect (101: Network is unreachable) Could not connect to au.archive.ubuntu.com:80 (202.158.214.106), connection timed out W: Failed to fetch http://au.archive.ubuntu.com/ubuntu/dists/eoan-updates/InRelease  Cannot initiate the connection to au.archive.ubuntu.com:80 (2001:388:30bc:cafe::beef). - connect (101: Network is unreachable) W: Failed to fetch http://au.archive.ubuntu.com/ubuntu/dists/eoan-backports/InRelease  Cannot initiate the connection to au.archive.ubuntu.com:80 (2001:388:30bc:cafe::beef). - connect (101: Network is unreachable) W: Some index files failed to download. They have been ignored, or old ones used instead.  I'm really not sure why it would be doing this, other than maybe some first-use hiccups? The computer is definitely connected to the internet, as I am writing this from that machine, and I have tried running the commands after rebooting and it still gives the errors. I can't seem to be able to connect to au.archive.ubuntu.com at all. ping au.archive.ubuntu.com just sits there without a response. If anyone could help, that would be great! If any extra information is required I'd be happy to edit it into the question.