Note that since Juno you can force-delete an instance in any vm_state but the task_state must be None:
https://review.openstack.org/#/c/111157/
So if the vm_state is 'ERROR' and the task_state is 'deleting', you have to reset the task state using the reset-state admin actions API first to reset the task_state to None and then you can force-delete it.
Note that since Juno you can force-delete an instance in any vm_state but the task_state must be None:
https:/ /review. openstack. org/#/c/ 111157/
So if the vm_state is 'ERROR' and the task_state is 'deleting', you have to reset the task state using the reset-state admin actions API first to reset the task_state to None and then you can force-delete it.