How to install build-essential? [duplicate]

Type in the Terminal sudo apt-get install build-essential and then press key TAB instead of pressing ENTER.

Enable main repository in Software & Updates.

Then run these commands in a terminal:

sudo apt-get update
sudo apt-get install build-essential

You have to enable the main repository in the /etc/apt/sources.list file.
To accomplish this remove the '#' character in front of the following lines.

#deb http://de.archive.ubuntu.com/ubuntu/ saucy-updates main restricted
#deb-src http://de.archive.ubuntu.com/ubuntu/ saucy-updates main multiverse restricted universe

Save the file and execute
sudo apt-get update && sudo apt-get install build-essential.