Can't add Android platform

after a project is created I try to add ios and android as platforms. ios suceeds, android fails with:

cordova platform add android
[Error: An error occured during creation of android sub-project. cp: /usr/local/lib/node_modules/cordova/lib/cordova-android/framework/assets/www/cordova-2.4.0.js: No such file or directory
An unexpected error occurred: cp "$BUILD_PATH"/framework/assets/www/cordova-$VERSION.js "$PROJECT_PATH"/assets/www/cordova-$VERSION.js exited with 1
Deleting project...
]