Getting a grunt version related error with Mobile Angular UI in node

I'm trying to get the mobile-angular-ui demo code (from http://mobileangularui.com/) and upon trying to run "npm install" in the project directory, I get the following error:

tests-mbp-8:mobile-angular-ui user$ npm install
npm WARN package.json kexec@0.1.2 homepage field must be a string url. Deleted.
/
> mobile-angular-ui@0.0.0 postinstall /Users/user/Development/git-workspace/bower_components/mobile-angular-ui
> bower install
npm ERR! peerinvalid The package grunt does not satisfy its siblings' peerDependencies requirements!
npm ERR! peerinvalid Peer grunt-contrib-clean@0.5.0 wants grunt@~0.4.0
npm ERR! peerinvalid Peer grunt-contrib-coffee@0.7.0 wants grunt@~0.4.0
npm ERR! peerinvalid Peer grunt-contrib-concat@0.3.0 wants grunt@~0.4.0
npm ERR! peerinvalid Peer grunt-contrib-connect@0.5.0 wants grunt@~0.4.0
npm ERR! peerinvalid Peer grunt-contrib-copy@0.4.1 wants grunt@~0.4.0
npm ERR! peerinvalid Peer grunt-contrib-cssmin@0.7.0 wants grunt@~0.4.1
npm ERR! peerinvalid Peer grunt-contrib-uglify@0.2.7 wants grunt@~0.4.0
npm ERR! peerinvalid Peer grunt-contrib-watch@0.5.3 wants grunt@~0.4.0
npm ERR! peerinvalid Peer grunt-recess@0.6.1 wants grunt@^0.4.0
npm ERR! peerinvalid Peer grunt-concurrent@0.5.0 wants grunt@~0.4.0
npm ERR! peerinvalid Peer grunt-contrib-less@0.11.0 wants grunt@^0.4.0

npm ERR! System Darwin 13.3.0
npm ERR! command "node" "/usr/local/bin/npm" "install"
npm ERR! cwd /Users/user/Development/git-workspace/bower_components/mobile-angular-ui
npm ERR! node -v v0.10.31
npm ERR! npm -v 2.0.0-beta.0
npm ERR! code EPEERINVALID
npm ERR! 
npm ERR! Additional logging details can be found in:
npm ERR!     /Users/user/Development/git-workspace/bower_components/mobile-angular-ui/npm-debug.log
npm ERR! not ok code 0

I've tried to resolve this problem through suggestions found online where people had similar problems, ranging from modifying the package.json file to uninstalling node/npm/grunt/etc and reinstalling everything. Any suggestions would be much appreciated!