If you find an error saying "gnome-control-center: error while loading shared libraries: libwebp.so.4: cannot open shared object file: No such file or directory" after upgrading Solus GNU/Linux 64 bit, you can follow this instruction to fix it:

sudo ln -s /usr/lib64/libwebp.so.6 /usr/lib64/libwebp.so.4

Details:

I personally found this error while upgrading (sudo eopkg upgrade) in Solus GNU/Linux version 1.2.1. The symptom was I could not launch GNOME Control Center, the GUI was not appearing. The source of problem was because GNOME Control Center asked for libwebp.so.4 but this file was gone and upgraded into libwebp.so.6 because of upgrading. So the solution was I just needed to create new "file" named libwebp.so.4 "linking" to the existing libwebp.so.6. The command above did this solution.

Recently, I upgraded my Ubuntu (XFCE) 12.10 Quantal Quetzal to Ubuntu 13.04 Raring Ringtail. When I wanted to add many PPAs which was disabled when upgrading, I've got the following error message "sudo: add-apt-repository: command not found". The command commonly used to add repository especially from PPA (Personal Package Archive), many good Ubuntu applications have their own PPA, so it should be installed on Ubuntu to get a full fledged Ubuntu system. I'm surprised a little bit, because I think it was installed by default on Ubuntu. So, if you encountered the same problem, here's the fix.

Hi readers! Today I'd like to write an old post on my Indonesian blog - TahuTEK.net - here. Although this is an old post, I think you can make use of it when you have a problem.

When you install application on Ubuntu, you may ever encounter this kind of error message:

"deluge-console : Depends: deluge-common (= 1.3.0-0ubuntu1) but 1.3.0-1~getdeb1 is to be installed"

The above error message appears when you have installed a newer version than the required dependencies. The error message tells that you have installed deluge-common version 1.3.0-1~getdeb1, but deluge-console (application you want to install) requires deluge-common version 1.3.0-0ubuntu1. The deluge common 1.3.0-1~getdeb1 can not be removed because one or many applications depend on it. So, how to resolve this problem? Well, you should downgrade the version of deluge-common to 1.3.0-0ubuntu1 so deluge-console can be installed and applications which require it still work (we hope :D).

To perform a downgrade action, simply type the following command:

• sudo apt-get install deluge-common=1.3.0-0ubuntu1

Please change the command above to match your need.

Hope it helps :)

Few days ago, I re-installed VLC which was removed accidentally. Suddenly, my laptop turned off because of my battery, so VLC was not installed correctly and caused a problem when running APT command with error message: "E: The package vlc needs to be reinstalled, but I can't find an archive for it.".

I have a feedback on my article about installing ProZilla Download Accelerator, he said that he encountered this problem:

Sedang membuka paket prozilla (dari .../prozilla_2.0.4-build2~tahutek~oneiric_amd64.deb) ...
dpkg: ada kesalahan saat memproses /var/cache/apt/archives/prozilla_2.0.4-build2~tahutek~oneiric_amd64.deb (--unpack): mencoba menimpa '/usr/share/locale/locale.alias', yang juga ada dalam paket locales 2.13+git20110622-2

The above error is in Indonesian, the English version about the error is shown on the picture below: