Meltano

I'm getting this error for facebook ads connection

Hi <@U06D0S16MGQ>! Is this a local installation or a hosted solution?

I installed from digitalocean marketplace today

Hey <@U06D0S16MGQ>,

You have not set your postgres credentials properly:

```psycopg2.OperationalError: could not connect to server: Connection refused
	Is the server running on host "localhost" (127.0.0.1) and accepting
	TCP/IP connections on port 5502?```

When working with the Facebook Ads Extractor and Postgres, you have to at least set the following env variables in your `.env` file:

```export PG_DATABASE=
export PG_PASSWORD=
export PG_USERNAME=
export PG_ADDRESS=
export PG_PORT=

export TAP_FACEBOOK_ACCOUNT_ID="XXXX"
export TAP_FACEBOOK_ACCESS_TOKEN="XXXX"```

For completeness: if you are running everything on the CLI, without using Meltano UI, you also need those:

```export TAP_FACEBOOK_START_DATE="2019-12-09T00:00:00Z"
export TAP_FACEBOOK_END_DATE="2019-12-19T00:00:00Z"```