Can not connect "sh: 1: ssh: not found"

[kvnsya]

$process = Ssh::create('HOST', 'USER')->execute('ls -a');
dd($process->getErrorOutput());

This is my dump
"sh: 1: ssh: not found"

If i just use $connection = ssh2_connect('HOST', 22); i dont have any problem to connect.

What could be the problem?

[deminy]

Command "ssh" is not available. You need to install an SSH client. e.g.,

apt-get install openssh-client --no-install-recommends