Re: Cannot authenticate: "SCRAM authentication requires libpq 10 or later"

Am 22.02.22 um 10:25 schrieb Dave Page:

Hi

On Mon, 21 Feb 2022 at 17:57, <frank77-postgres@spamfreemail.de> wrote:

Hello all,

I installed pgadmin4 using "pip install" on a 64bit Raspbian system.

Everything worked well, except for the error message when trying to authenticate to my Postgres server on the same machine.
(...) The app boots up fine, and I can access it using a web browser, and log in fine. Only actually logging into a Postgres server fails. (...) But I have libpq 14 installed and not libpq 10:

pi@raspberry64 $ dpkg -l|grep libpq
ii  libpq-dev                          14.2-1.pgdg110+1                 arm64        header files for libpq5 (PostgreSQL library)
ii  libpq5:arm64                       14.2-1.pgdg110+1                 arm64        PostgreSQL C client library

What am I missing? And how can I fix this? (Except changing the auth method serverside, which I would like to avoid)

It sounds like psycopg2-binary on your machine is including an older version of libpq - though on my rpi it doesn't include any version which is quite odd (as that's the whole point of the -binary version).

You could try "pip3 uninstall psycopg2-binary && pip3 install psycopg2"

Hello Dave,

that was it! Thank you!!

Can I help document this somewhere?
I didn't find any mention of this situation anywhere in the existing documentation.