Terraform on linux mint OS

I was having challenge to download terraform on linux mint OS. Despite following the command on the official site for linix OS. I could not install it into my sytsem.

This is what I’m seeing

The repository 'https://apt.releases.hashicorp.com vanessa 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.

As you followed the instructions for Ubuntu/Debian, but are not using either of those, it is not unexpected that they are not a perfect fit.

You need to read and understand the instructions, and modify them to account for the fact you are running on an Ubuntu derivative, not Ubuntu itself.

There is no HashiCorp repository for “vanessa” so you should identify the closest matching Ubuntu equivalent and try that instead.