Sencha Command Issue

Question

Good Evening, I have a problem and have not found a solution to the CMD Sencha, Sencha SDK Tools installed and Sencha Command and am trying to develop with Sencha Touch but when I attempt to "sencha app build production" but a problem occurs:

And I tried a lot and have not found a solution yet

Answer 1

Do you have ruby installed on your system? If you do then the error probably has to do with your version of ruby. Make sure you are using version 1.9.3

Answer 2

Take a look in this link:

Error building application in Sencha Architect

It´s works for me ! Note: You have to restart the windows !