Why is it not possible to connect with Pycharm via vagrant environment to ubuntu 12 (64bit)?

Question

Python

Hi all. I'm learning python, django
want to set up my development environment normally.
I do everything according to this manual
Vagrant, Python, Pycharm = (convenient, work, Windows)
habrahabr.ru/company/dataart/blog/264367
everything is ok until I get to this point

Go to the project settings menu: File->Settings->Project Interpeter. Here we add a new interpreter: specify its address (127.0.0.1), port number (2222), username (vagrant), path to the interpreter /home/vagrant/venv/bin/python and, finally, specify the path to the file with the key for ssh.

Those. unable to connect with Pycharm (version 4.5.4) via vagrant environment to ubuntu 12 (64bit) .
Through PuTTY everything connects ok.
Already tried this
stackoverflow.com/questions/28612875/phpstorm-algo...
but then it also stops working through PuTTY.