Dear Maintainer, Sometimes when I'm stopping VirtualBox VM with 'vagrant halt' command or packaging live VM with 'vagrant package', I receive such error: ---- [my_vm] Attempting graceful shutdown of VM... There was an error while executing `VBoxManage`, a CLI used by Vagrant for controlling VirtualBox. The command and stderr is shown below. Command: ["showvminfo", "e29614d3-1225-4fd9-9940-797ade576c75", "--machinereadable"] Stderr: VBoxManage: error: The object is not ready VBoxManage: error: Details: code E_ACCESSDENIED (0x80070005), component SessionMachine, interface IMachine, callee nsISupports VBoxManage: error: Context: "COMGETTER(ChipsetType)(&aChipset)" at line 76 of file VBoxManageControlVM.cpp VBoxManage: error: The object is not ready VBoxManage: error: Details: code E_ACCESSDENIED (0x80070005), component SessionMachine, interface IMachine, callee nsISupports VBoxManage: error: Context: "COMGETTER(BandwidthControl)(bwCtrl.asOutParam())" at line 2061 of file VBoxManageInfo.cpp ---- It happens irregular and seems VM stops successfully anyway, but 'package' command fails. I have tryied to catch the error with VBoxManage directly while VM was shutting down with no luck. So I suppose it is really a bug in vagrant.