No Release File

[Reinis Rozitis]

> E: The repository 'http://nginx.org/packages/ubuntu tricia Release' does not
> have a Release file.
> N: Updating from such a repository can't be done securely, and is therefore
> disabled by default.
> -----
> Are there any other instructions available to get Nginx 1.17 downloaded?

You should probably use the bionic repo since there is no direct repo for the Linux Mint (tricia).

rr