Thanks Stan for the pointer. I removed the line that referred to the 'name' property and now my application is added to the environment without any errors. However, what I see in ui.yaml still doesn't look like YAML. I'm attaching samples again. Even for HOT packages the content is not YAML. Regards, --Vahid -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20151126/ef461010/attachment.html> -------------- next part -------------- A non-text attachment was scrubbed... Name: ui-csar.yaml Type: application/octet-stream Size: 201 bytes Desc: not available URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20151126/ef461010/attachment.obj> -------------- next part -------------- A non-text attachment was scrubbed... Name: ui-hot2.yaml Type: application/octet-stream Size: 152 bytes Desc: not available URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20151126/ef461010/attachment-0001.obj>