Error VT-x not available for Vagrant machine inside Virtualbox

Question

I have an Ubuntu Virtual machine that is configured to have VT-x enabled, 6 Processors, and 25 GB RAM.

Inside that virtual machine I am trying to start a vagrant mac

Answer 1

UPDATED: As pointed out below, you can use nested VirtualBox + vagrant provided that only 1 virtual CPU is assigned to the nested VM, plus nested VM guest is 32-bit OS.