npm install fails

[ahmetabdi]

npm i react-native-router-flux --save
npm ERR! Darwin 15.0.0
npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "i" "react-native-router-flux" "--save"
npm ERR! node v5.0.0
npm ERR! npm  v3.3.6

npm ERR! Invalid name: "@exponent/react-native-navigator"
npm ERR!
npm ERR! If you need help, you may report this error at:
npm ERR!     <https://github.com/npm/npm/issues>

npm ERR! Please include the following file with any support request:
npm ERR!     /foo/project/npm-debug.log

[ahmetabdi]

Just update npm if you get this
sudo npm install npm -g