I am trying to get familiar with docker and docker engine. I have succesfully installed docker engine (the 'hello world' test runs with no issues). I have also correctly installed docker-desktop (as a matter of fact I have the icon on the menu as normal) but if I try to launch it by clicking it, or right-click launch it never starts.
I've even tried booting it with the command from the terminal
systemctl --user start docker-desktop
but still nothing.
My os is Linux Mint 19.3 Let me know if you need any diagnostics.
Thank you very much in advance for any help :)
I had this exact problem and google brought me here. I was running a ubuntu VM inside VirtualBox for Windows. When the VM was not running, it was fixed by enabling:
Settings->System->Processor->Enable Nested VT-x/AMD-V
So whether your host is virtual or physical, make sure it has virtualization enabled.
More information here.