Hi, I am trying to setup my own OpenStack cloud for development. I installed DevStack on a VM and the installation is fine. I am able to log in via Horizon. I followed these steps to create an instance via Horizon. http://isurues.wordpress.com/tag/devstack/. However, when I launch an instance, I get the following error. Failed to launch instance "nova": Please try again later [Error: No valid host was found. ] I checked if the libvirt_type=qemu in nova.conf. Also the package nova-compute-qemu is installed. I am using Ubuntu 14.04. Can someone identify why this problem occurs and how to solve it? What are the possible causes for this problem? Thanks, Sharan Kumar M -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20140909/76794679/attachment.html>