error when running npm shrinkwrap

gistfile1.txt

npm ERR! peerinvalid The package grunt does not satisfy its siblings' peerDependencies requirements!
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.0
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.0
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.0
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.1
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.0
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.5
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.0
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.0
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.0
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.0
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.0
npm ERR! peerinvalid Peer [email protected] wants grunt@>=0.4.5
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.0
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.1
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.1
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.0
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.0
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.0
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.2
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.2
npm ERR! peerinvalid Peer [email protected] wants grunt@~0.4.2

npm ERR! System Darwin 12.2.1
npm ERR! command "node" "/usr/local/bin/npm" "i"
npm ERR! cwd /Users/mbenin/Desktop/node-startup
npm ERR! node -v v0.10.32
npm ERR! npm -v 1.4.28
npm ERR! code EPEERINVALID
npm ERR! 
npm ERR! Additional logging details can be found in:
npm ERR!     /Users/mbenin/Desktop/node-startup/npm-debug.log
npm ERR! not ok code 0