Unrecognized Config Parameter "bytea_output" pgAdmin 4

Question

I'm trying to connect pgAdmin Version 4 to an existing Postgres instance. Previously I was using pgAdmin 3 and it was working fine. I'm not sure what I might be doing wrong. I have the following configurations:

Not sure what I could be missing.

I get the error below:

Unable to connect to server:

ERROR: unrecognized configuration parameter "bytea_output"

Answer 1

PostgreSQL 9.0 and earlier are not supported by pgAdmin 4.

Unfortunately that is not documented yet, but you can find it in this and this bug report (requires a PostgreSQL community account):

Sorry, we're only building support for 9.1 and later (the currently supported releases). pgAdmin 3 can still be used with earlier versions.

Answer 2

pgAdmin4 supports Postgres9.2 & above version.