When I installed Cura on my Linux Mint 18 system it wouldn't run. I ran Cura from the command line and my laptop responded with the following error message:
/usr/bin/cura: line 3: python 3.4: command not found
Apparently, python 3.4 doesn't come with Linux Mint 18 and recent versions of Ubuntu, and possibly other Linux versions.
I did find that somebody has created a solution to this problem. He has created a PPA repository that you can add to your system so that you can now install Cura on your system without errors.
Head over to https://launchpad.net/~thopiekar/+arc... to find these instructions. My video will walk you through the instructions.
If you've already installed Cura from the Cura website, make sure to uninstall Cura before following these instructions.