+lib/neutron_plugins/services/l3:create_neutron_initial_network:162 die_if_not_set 162 project_id ‘Failure retrieving project_id for demo’

I encountered this error while installing OpenStack using DevStack.
The reason was I kept the base memory of CentOS7 virtual machine to 1024 MB.
Failure retrieving project_id for demo error can be solved by increasing base memory greater than 2048 MB.
It worked for me, I hope it will work for you too.
Thanks for Reading,
Chandan Rajpurohit.
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