`enter code here's get this error when building a machine in OpenStack I checked Nova service logs and received this error
Error: Build of instance c1192e0a-e815-4f4e-b995-05d0c6bd2dfc aborted: Failed to allocate the network(s), not rescheduling
I stop rabitmq1 and rabitmq2 and rabitmq3 after that I start rabitmq3 and rabitmq2 and rabitmq1 after that reboot Lxc neutron finally I could fix error