Couchbase4 install on CentOS7 can not been start by systemctl?

[jfrodriguez]

This issue has been already discussed here:

Centos 7 couchbase server cannot start the service

Hi There, I was installed couchbase 4.1 on my centos 7.1 in google cloud. But service is not working to start. Starting couchbase-server (via systemctl): Failed to start couchbase-server.service: Unit couchbase-server.service failed to load: No such file or directory. Someone can help me to fix them. Thank in advance.

Best,
JF