Failed to open a session for the virtual machine

[dragan]

I've been using VirtalBox for a year on the Ubuntu 16.04 system and I've been doing everything ok, but today I can not start (when I click on the start, I only get this error Failed to open a session for the virtual machine

Please if you can help me I do not have much experience with this.

thanks a lot

[socratis]

VirtualBox VM 5.0.40_Ubuntu r115130 linux.amd64 (Apr 20 2017 06:58:05) release log

You're using the Ubuntu's fork version of VirtualBox. You can either ask in their forums for help, or completely remove/uninstall/delete/purge their version and install the official version from the Downloads section of VirtualBox (https://www.virtualbox.org/wiki/Downloads).

If you applied the recent updates, you most probably have to update to the latest test build: ≥120181 for 5.2.x (or ≥120178 for 5.1.x) that contains the fix.

[dragan]

thanks a lot on the answer

I installed the version of how you wrote me, but now I get a mistake


thanks very much for your help again