can't install app using it's installer or through commands

Question

i'm trying to install team viewer on Ubuntu 17.04 the site says if the installer doesn't execute then try right clicking and opening through software installation , and open with ubuntu software center , both of which are not options anywhere

so i tried running the command : sudo apt install teamviewer_12.0.xxxxx_i386.deb but I got this as a response:

Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Unable to locate package teamviewer_12.0.xxxxx_i386.deb
E: Couldn't find any package by glob 'teamviewer_12.0.xxxxx_i386.deb'
E: Couldn't find any package by regex 'teamviewer_12.0.xxxxx_i386.deb'

doesn't this command look for it online ?why can't it be found

also i tried moving to my downloads directory and running the command again , same result

Answer 1

You can install it using sudo dpkg -i /path/to/deb/file followed by sudo apt-get install -f

If you want to install it using apt-get install package_name, you first need to move your deb file to /var/cache/apt/archives/ directory. After executing this command, it will automatically download its dependencies

Answer 2

apt searches the repositories that you have setup in software sources to locate packages. It can't find the teamviewer package unless you have updated your list of sources to include a PPA which has it. The easiest method is to download the Ubuntu package and install it with gdebi.

gdebi [package.deb] where [package.deb] is the path/to/and name of the deb file you downloaded (currently teamviewer_12.0.76279_i386 ).