'pg_dump: sever version:11.7; pg_dump version: 10.3(Ubuntu-10.3-1) pg_dump: aborting because of server version mismatch

I use pip3 install pgadmin4==4.30 to install pgadmin in my ubuntu. And I want to backup my remote server data by Tools-Backup in pgadmin, which is equal to the following command.

/usr/bin/pg_dump --file "~/demo.backup" --host "127.0.0.1" --port "42885" --username "postgres"....

However there is an error says:pg_dump: sever version:11.7; pg_dump version: 10.3(Ubuntu-10.3-1). One thing that puzzles me is I don't have version 11.7 installed at all. Here is the output of ls -la /usr/bin/pg_dump

0 lrwxrwxrwx 1 root root 34 Mar 2 18:05 /usr/bin/pg_dump -> /usr/lib/postgresql/10/bin/pg_dump

And there is only one version(10) in /usr/lib/postgresql folder. Anyone can tell me how I can fix this? I have tried every solution of this and neither of them worked out.



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