Create Database using dbca result: TNS-04612: Null RHS for service_name

When creating a (cluster) database using DBCA it can result into an error. One of those errors can be TNS-04404, TNS-04414 & TNS-04612 errors. Testing the service with tnsping or sqlplus works fine.

TNS-04414: File error caused by: TNS-04612: Null RHS for “service_name”