3.0.x Unable to do anything with CLI cordova

I am testing PhoneGap 3.0 but I am unable to install platforms or plugins!! what could be happening?

Image: https://fbcdn-sphotos-f-a.akamaihd.net/hphotos-ak-ash3/62304_10151761450434002_294922737_n.jpg

If you see the image, you can note that I am running CLI to install platforms and plugins on a cordova project, but nothing happens, not even an error.