Unable to Connect to Server Error Help

From: "Michael J(dot) Cosentino" <mjcosentino(at)gmail(dot)com>
To: pgsql-novice(at)lists(dot)postgresql(dot)org
Subject: Unable to Connect to Server Error Help
Date: 2020-02-25 03:25:36
Message-ID: CAJtCDcZp=uwZ1o0zw2YZgCZ5Z-jejhiW5FTkRKM3mGpAcT2bJg@mail.gmail.com
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Hello,

I am on a MacOS, (10.15.3), I am new to SQL in general, and I've downloaded
both the Postgres.app and pgadmin 4 for the first time - trying to learn
from a book from the library.
When I initially tried to open pgadmin, I got the error "The application
server could not be contacted."

I closed Postgres.app, and restarted pgadmin, and got past that initial
error, and got pgadmin to load in my browser (Chrome), but there were no
Servers in the object browser of pgadmin (the pane on the left).

I tried to connect a new server, and got the following error message:
"unable to connect to server. timeout expired"

I tried inputting the server name for the server from Postgres.app, but
that didn't seem to do anything. It looks like pgadmin is connecting to the
correct port (5432), but I basically have no clue what i'm doing wrong.

attaching some screenshots of what i'm seeing in pg admin.

thanks!
mike

Attachment Content-Type Size
image/png 51.0 KB
Screenshot 2020-02-24 22.13.50.png image/png 545.1 KB

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