vboxmanage does not work with ubuntu 18.04

[zmansour]

wes:tmp zmansour$ vboxmanage guestcontrol ubu1804 --verbose --username juser --password jpassword run --exe /bin/ls --timeout 3000 --wait-stdout --wait-stderr Creating guest session as user 'juser'... Waiting for guest session to start... Successfully started guest session (ID 1) Starting guest process (within 3000ms) Process '/bin/ls' (PID 1738) started VBoxManage: error: Reading from process "/bin/ls" (PID 1738) failed: VERR_TIMEOUT. VBoxManage: error: Reading from process "/bin/ls" (PID 1738) failed: VERR_TIMEOUT. Process monitor loop quit with vrc=VERR_GENERAL_FAILURE Closing guest session ... wes:tmp zmansour$