LL3.0: "couldn't fetch the package cache information lists"

[m654321]

I'm now unable to use 'Install Updates' or 'Lite Software' from the Menu, as I get this message popping up on screen whenever I make an attempt: "couldn't fetch the package cache information lists". How do I fix this?

It seemed to follow download of Virtualbox 5.1.4 r110228 (Qt5.5.1) and its Extension package, from the Oracle website, though don't know if the two are related.

The log from the location /var/log/lite-software.log is given below:

Code:

[08/31/16 15:22:55] INFO: Software sources were updated.
[08/31/16 15:23:36] INFO: Installation of packages initiated: ubuntu-restricted-extras libavcodec-extra skype-bin skype
[08/31/16 15:44:54] INFO: Installation was a success.
[08/31/16 17:38:22] INFO: Software sources were updated.
[08/31/16 17:39:52] INFO: Software sources were updated.
[08/31/16 17:40:04] INFO: Installation of packages initiated: guvcview
[08/31/16 17:40:13] INFO: Installation was a success.
[08/31/16 17:40:21] INFO: Installation of packages initiated: audacity
[08/31/16 17:41:02] INFO: Installation was a success.
[08/31/16 17:41:13] INFO: Installation of packages initiated: aisleriot gnome-mahjongg gnome-mines gnome-hearts
[08/31/16 17:41:47] INFO: Installation was a success.
[08/31/16 17:42:04] INFO: Installation of packages initiated: clementine
[08/31/16 17:42:31] INFO: Installation was a success.
[08/31/16 17:42:51] INFO: Installation of packages initiated: openshot blender imagemagick
[08/31/16 17:46:20] INFO: Installation was a success.
[08/31/16 20:16:46] INFO: Software sources were updated.
[08/31/16 20:17:26] INFO: Installation of packages initiated: playonlinux
[08/31/16 20:29:35] INFO: Installation was a success.
[08/31/16 20:55:27] INFO: Software sources were updated.
[08/31/16 21:00:48] INFO: Installation of packages initiated: virtualbox
[08/31/16 21:02:36] INFO: Installation was a success.
[08/31/16 21:38:22] INFO: Software sources were updated.
[09/01/16 08:28:37] ERROR: Updating sources has failed.
[09/01/16 08:31:14] ERROR: Updating sources has failed.
[09/01/16 08:34:22] ERROR: Updating sources has failed.

Mike

[LL-user]

Hi Mike,

What's the output if your run the following command in a terminal:

Code:

sudo apt update

[m654321]

Hi Mike,

What's the output if your run the following command in a terminal:

Code:

sudo apt update

Thanks LL-user.  The output is as follows...

Code:

mike@mike-G750JS:~$ sudo apt update
[sudo] password for mike:
Ign:1 http://ppa.launchpad.net/kilian/f.lux/ubuntu xenial InRelease
Hit:2 http://archive.canonical.com xenial InRelease                           
Hit:3 http://ppa.launchpad.net/nathan-renniewaldock/flux/ubuntu xenial InRelease
Hit:4 http://ppa.launchpad.net/nemh/systemback/ubuntu xenial InRelease         
Hit:5 http://ppa.launchpad.net/otto-kesselgulasch/gimp/ubuntu xenial InRelease
Get:6 http://security.ubuntu.com/ubuntu xenial-security InRelease [94.5 kB]   
Hit:7 http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu xenial InRelease         
Hit:8 http://us.archive.ubuntu.com/ubuntu xenial InRelease                     
Err:9 http://ppa.launchpad.net/kilian/f.lux/ubuntu xenial Release             
  404  Not Found
Hit:10 http://repo.linuxliteos.com/linuxlite citrine InRelease                 
Get:11 http://us.archive.ubuntu.com/ubuntu xenial-updates InRelease [95.7 kB] 
Hit:12 http://us.archive.ubuntu.com/ubuntu xenial-backports InRelease         
Get:13 http://us.archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages [324 kB]
Get:14 http://us.archive.ubuntu.com/ubuntu xenial-updates/universe i386 Packages [320 kB]
Reading package lists... Done     
E: The repository 'http://ppa.launchpad.net/kilian/f.lux/ubuntu xenial Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
mike@mike-G750JS:~$

Mike

[LL-user]

Hi Mike,

You tried to install f.lux. If you deactivate/delete that repository you should be fine.

As a better - cause also error free - alternative I recommend to install gtk-redshift. It is included in the repositories, i.e. doesn't need another PPA. If you use your computer also offline and want it working you need to create a config file - let me know if you need help. Otherwise just start it up

Hope that helps

[m654321]

I've deleted it, using the option "completely remove" in synaptic package manager, but still have the problem...

[LL-user]

Hi Mike,

If I'm not mistaken you're talking about a/the package.

You need to remove the PPA from your repository list.
-> Synaptic -> Settings -> Repositories -> Other Software
Here you untick the repository for f.lux.

Hope that does the trick

[Valtam]

There is no Xenial (16.04) PPA for f.lux. Please be very careful adding PPA's folks. We have kept them to an absolute minimum on LL. If you are thinking of adding a PPA, feel free to ask the Forum first about it

[m654321]

Hi Mike,

If I'm not mistaken you're talking about a/the package.

You need to remove the PPA from your repository list.
-> Synaptic -> Settings -> Repositories -> Other Software
Here you untick the repository for f.lux.

Hope that does the trick

Yes that did the trick LL-user (-> Synaptic -> Settings -> Repositories -> Other Software)
Many thanks
Mike

[LL-user]

Glad it's sorted