I got the error :
E: Unable to locate package
output of
Code: Select all
$ sudo apt-get updateCode: Select all
Hit http://mirrordirector.raspbian.org jessie InRelease
Hit http://mirrordirector.raspbian.org testing InRelease
Hit http://archive.raspberrypi.org jessie InRelease
Hit http://mirrordirector.raspbian.org jessie/main armhf Packages
Hit http://packages.ros.org jessie InRelease
Hit http://mirrordirector.raspbian.org jessie/contrib armhf Packages
Hit http://mirrordirector.raspbian.org jessie/non-free armhf Packages
Hit http://mirrordirector.raspbian.org jessie/rpi armhf Packages
Hit http://archive.raspberrypi.org jessie/main armhf Packages
Hit http://archive.raspberrypi.org jessie/ui armhf Packages
Hit http://mirrordirector.raspbian.org testing/main Sources
Hit http://mirrordirector.raspbian.org testing/contrib Sources
Hit http://mirrordirector.raspbian.org testing/non-free Sources
Hit http://mirrordirector.raspbian.org testing/rpi Sources
Hit http://packages.ros.org jessie/main armhf Packages
Ign http://archive.raspberrypi.org jessie/main Translation-en
Ign http://mirrordirector.raspbian.org jessie/contrib Translation-en
Ign http://archive.raspberrypi.org jessie/ui Translation-en
Ign http://mirrordirector.raspbian.org jessie/main Translation-en
Ign http://mirrordirector.raspbian.org jessie/non-free Translation-en
Ign http://mirrordirector.raspbian.org jessie/rpi Translation-en
Ign http://packages.ros.org jessie/main Translation-en
Reading package lists... Done