I use this Heroku Buildpack to compile my recent project on Heroku https://github.com/gcpantazis/heroku-buildpack-php-gruntjs
It works great with Node version 0.8.x. However, when I change to Node version 0.10.x and push code to heroku, it shows me this error "Failed to install -g grunt-cli --silent dependencies with npm".
Any help would be appreciated.