what did you do? can you please try my ppa? and use the ubuntu virtualbox sudo apt-get remove --purge virtualbox-5.1 https://launchpad.net/~costamagnagianfranco/+archive/ubuntu/virtualbox-ppa
what did you do? can you please try my ppa? /launchpad. net/~costamagna gianfranco/ +archive/ ubuntu/ virtualbox- ppa
and use the ubuntu virtualbox
sudo apt-get remove --purge virtualbox-5.1
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