Steroids looses connection when I initialize data


Hello everyone… I was able to install steroids and get the simulator working, but as soon as I try to initialize data I get this message:

Connection lost!

Cannot connect to the Steroids Development Server! Start the Steroids Development Server by running steroids connect in Terminal in your project directory.

Any idea of what the problem could be?
npm version 5.0.0
steroids version 4.1.27
xcode version 8

Thank you