Hello, I am begineer on this topic. I want to connect my dataflow to store data in postgresql and google found your topic in the forum. I am trying all the things you said and the service remains "Enabling". Could you explain exactly the steps to enable this communication. From my side: 1. Download postgresql-42.2.8.jar. 2. Move to C:\Program Files\nifi-1.9.2\lib 3. Restart Nifi. 4. Configure DBCPConnectionPool with the following parameters: URL: jdbc:postgresql://127.0.0.1:5432/nifi Diver Class: org/postgresql/Driver.class Driver Location: file:////C:/Program Files/nifi-1.9.2/lib/postgresql-42.2.8.jar   Is something wrong? Could you help me? The service remains "ENABLING"   Regards, ... View more