I'm done with Windows. So I just installed Ubuntu 16.04. I followed the instructions on this website of how to install GNS3 onto Ubuntu 16.04 via the 3 commands in the prompt.
sudo add-apt-repository ppa:gns3/ppa sudo apt-get update sudo apt-get install gns3-gui
Now when I search for GNS in my apps it's not there. If I try to install again the prompt says GNS3 is up to date. What to do now?