Comment 9 for bug 1591186

I have investigated and found that the template is using properties moved to HIDDEN status and hence is not able to create new stack using it. Please use the new properties:

For OS::Neutron::RouterInterface:
Use router instead of router_id
Use subnet instead of subnet_id

For OS::Neutron::Port:
Use network instead of network_id

For OS::Neutron::Subnet:
Use network instead of netowrk_id.

Unfortunately, the mitaka release notes doesn't have this information.