Error to add platform in cordova project

问题:

I have install cordova but i'm facing the problem to add android platforms.

All the steps is going very well but when I'm trying to add platform command

"cordova platform add android"

cli screen show me

 "adding android project..."

& than nothing happen..

In the project directory platform folder is created but it is empty..

Please help me to solve the problem.

Installed system versions are as follows,

 1.cordova version 6.2.0
 2.node version 4.4.1
 3.install sdk api 23
 4.install jdk