StandardError: GraphViz not installed or dot not in PATH. Install GraphViz or use the 'path' option

[bublik]

rails 4.2

Gemfile
gem 'state_machine'
gem 'ruby-graphviz', '1.2.1', :require => 'graphviz'

bundle exec rake state_machine:draw FILE=house_contact.rb CLASS=UserHouse PATH=./doc/
bundle exec rake state_machine:draw FILE=house_contact.rb CLASS=UserHouse

and result
Files are automatically loaded in Rails; ignoring FILE option
/Users/ruslanvoloshin/.rvm/gems/ruby-2.2.0/bin/rake: No such file or directory - ps
rake aborted!
StandardError: GraphViz not installed or dot not in PATH. Install GraphViz or use the 'path' option
/Users/ruslanvoloshin/.rvm/gems/ruby-2.2.0/gems/ruby-graphviz-1.2.1/lib/graphviz.rb:544:in output' /Users/ruslanvoloshin/.rvm/gems/ruby-2.2.0/gems/state_machine-1.2.0/lib/state_machine/graph.rb:52:inoutput'

[seuros]

The error is clear : GraphViz not installed. Install GraphViz.

[yovasx2]

You need to install graphviz in your OS, for debian:

root@de78dad56e8e:/onelogin/src# sudo apt-get update
root@de78dad56e8e:/onelogin/src# sudo apt-get install graphviz