I am attempting to install pgAdmin4 on 20.10
https://www.pgadmin.org/download/pgadmin-4-apt/
When I do the first step:
curl https://www.pgadmin.org/static/packages_pgadmin_org.pub | sudo apt-key add
I get this message:
Warning: apt-key is deprecated. Manage keyring files in trusted.gpg.d instead (see apt-key(8)).
Moving to the second step:
sudo sh -c 'echo "deb https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/$(lsb_release -cs) pgadmin4 main" > /etc/apt/sources.list.d/pgadmin4.list && apt update'
I get this message:
E: The repository 'https://ftp.postgresql.org/pub/pgadmin/pgadmin4/apt/groovy pgadmin4 Release' does not have a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.```
I have encountered this issue with two or three other public repositories recently. At first I thought it was just a problem with the repository, but I'm beginning to think otherwise.