VirtualBox error on MacOS Sierra
Upgrading Vagrant and VirtualBox fixed the issue for me. For those wondering, no you don't end up losing your existing VMs if you upgrade.
- Vagrant: https://www.vagrantup.com/downloads.html
- VirtualBox: https://www.virtualbox.org/wiki/Downloads
some reported issues after update to macos Sierra. re-installing Virtualbox solves the issue
This issue affects anyone installing VirtualBox for the first time on a fresh macOS High Sierra 10.13.
This effectively breaks our fully automated installation process on macOS, since the user now has to perform a manual approval and then restart the installation (reboot and rerun the installation in some cases)
First, try to restart the Virtualbox with below command.
sudo "/Library/Application Support/VirtualBox/LaunchDaemons/VirtualBoxStartup.sh" restart
If you are still facing this issue then given assign the below permission as per the screenshot.
Note: If the Allow button does not show up, run sudo kextcache -system-caches
Source: https://github.com/docksal/docksal/issues/417