Youtube-dl ERROR: ffprobe or avprobe not found. Please install one.

When i try to download youtube video into mp3 using youtube-dl command line tool, i get an error like this : ffprobe or avprobe not found. Please install one. How to solve this issue?

How to fix W: Target Packages (main/binary-amd64/Packages) is configured multiple times in /etc/apt/sources.list

This morning, i decided to upgrade my laptop which runs on lubuntu 17.10 to the new lubuntu 18.04 bionic, but when i run apt-get update command, this error appear in the command line:

How to fix error Qt platform plugin "xcb"

Yesterday i was installing new program on my lubuntu laptop, but i got an error that says: This application failed to start because it could not find or load the Qt platform plugin "xcb" in ""

VLC does not support the audio or video format "hevc"

This morning when i try to open a movie file with VLC on lubuntu, i got an error saying that audio or video format not supported, here's the error message:

How to fix GPG error “NO_PUBKEY” when running apt-get update

Yesterday when i try to add PPA repository for webupd8team, i get an error saying GPG error: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY C2518248EEA14886. This happens on lubuntu 17.10 artful aardvark, so how do i fix this issue?

Error retrieving accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown: The name org.a11y.Bus was not provided by any .service files

When i try to run byzanz screen recorder i get annoying error message like this: 

WARNING **: Error retrieving accessibility bus address: org.freedesktop.DBus.Error.ServiceUnknown: The name org.a11y.Bus was not provided by any .service files

This happened on both lubuntu 16.04 and lubuntu 17.10 (maybe lubuntu 17.04 too). So how to fix this issue?

How to install TeamViewer on Lubuntu 16.04

Teamviewer is one of the best remote desktop software in the world, it allows you to access your computer remotely through internet connection. Teamviewer available on various operating system such as windows, mac, linux, android, ios, blackberry, and windows phone. In this article i will show you how to install teamviewer on lubuntu 16.04.

phpMyAdmin deprecation notice error Lubuntu 16.04

Yesterday when i open phpmyadmin on my laptop which runs lubuntu 16.04 and php 7.0, i get a bunch of error message like this:

Lubuntu 16.04 crash on the first boot

Two days ago i switch from lubuntu 15.10 wily to lubuntu 16.04 xenial, i did a fresh install from a usb stick, i was shocked that my lubuntu 16.04 just crash on the first time boot, right after the installation finish.

How to install MP3 encoding on Lubuntu

If you want to convert let's say a movie file into mp3 format, you will need to install mp3 encoding library on your lubuntu because most converter software are depend on it.

My Lubuntu 15.10 just crash again

I have acer aspire 4935 laptop which runs lubuntu 15.10 wily werewolf, and this afternoon it just crash again, this time because of program or script called plymouthd (/sbin/plymouthd).

Sorry, Ubuntu 15.10 has experienced an internal error

A few days ago, i had this error on my lubuntu 15.10 wily werewolf, the error is related with PCManFM which is the file manager on lubuntu.