Debian installation problem

While trying to apt-get install adruino i am getting this error.

Reading package lists... Done
Building dependency tree
Reading state information... Done
Package arduino is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'arduino' has no installation candidate

I guess that i need to add a new repository, but i cant find which one i need. In the instructions it doesnt say specific which one i need. Anyone can help? Running LMDE 64bit.

Which Debian release are you?

lsb_release -a
No LSB modules are available.
Distributor ID: LinuxMint
Description: Linux Mint Debian Edition
Release: 1
Codename: debian

Fresh download from Download LMDE 5 - Linux Mint

You probably have a package installed that suggests or recommends the arduino package (maybe as a holdover from Debian or whichever Debian-based distro they got their packages list from), but the arduino package itself isn't in your repository, which is why it's giving you that particular message. You might run

apt-get update

as root and try again.

If that doesn't do it, you can try downloading arduino-0022 from here.