I\'m getting this error while loading a Puppet image from a Oracle virtual box. How can I fix it?
Failed to open a session for the virtual machine learn-puppet-c
That error message also appeared into my VM. First of all, I tried to disable the option "Enable VT-x/AMD-V" (you can find it opening the settings of your VM: Settings->System->Acceleration), there was a warning saying that "Invalid settings detected (you accept the changes and the box was selected again).
Then I read this posts and I tried to enable the Virtualiation Techniuqe (used when you want to enable various VM in your computer (by default is set as Disabled because you don't need that property working.