The package grunt does not satisfy its siblings' peerDependencies requirements
gruntjs, javascript, node.js
Solution
I had a similar error like this today, and fixed it by upgrading npm:
npm install -g npm
I had version 2.14 and after upgrading it became 3.8
Problem
I am trying to create my grunt build but stuck in following error ``` npm WARN package.json Dependency 'grunt' exists in both dependencies and devDependencies, using 'grunt@~0.4.2' from dependencies npm ERR! Darwin 13.4.0 npm ERR! argv "node" "/usr/local/bin/npm" "install" npm ERR! node v0.12.0 npm ERR! npm v2.5.1 npm ERR! code EPEERINVALID npm ERR! peerinvalid The package grunt does not satisfy its siblings' peerDependencies requirements! npm ERR! peerinvalid Peer grunt-contrib-requirejs@0.4.4 wants grunt@~0.4.0 npm ERR! peerinvalid Peer grunt-config@0.1.8 wants grunt@~0.4.0 npm ERR! peerinvalid Peer grunt-string-replace@0.2.8 wants grunt@~0.4.1 npm ERR! peerinvalid Peer grunt-contrib-clean@0.5.0 wants grunt@~0.4.0 npm ERR! peerinvalid Peer grunt-contrib-cssmin@0.10.0 wants grunt@~0.4.1 npm ERR! peerinvalid Peer grunt-contrib-jshint@0.11.0 wants grunt@~0.4.5 npm ERR! peerinvalid Peer grunt-contrib-uglify@0.8.0 wants grunt@>=0.4.0 npm ERR! peerinvalid Peer grunt-exec@0.4.6 wants grunt@~0.4 ``` As here mentioned, I uninstalled my node,npm and grunt and reinstalled them but still facing same issue ? Any idea ? My JSON dependencies are : ``` "dependencies": { "grunt": "~0.4.2", "grunt-contrib-requirejs": "~0.4.1", "grunt-config": "~0.1.4", "grunt-string-replace": "~0.2.7", "grunt-contrib-clean": "~0.5.0", "grunt-contrib-cssmin": "~0.10.0" }, "devDependencies": { "grunt": "0.4.2", "grunt-cli": "0.1.13", "grunt-contrib-jshint": ">0.8.0", "grunt-contrib-uglify": ">0.3.2", "load-grunt-tasks": ">=0.3.0", "requirejs": ">=2.1.10", "grunt-exec": "~0.4.5" } ``` Same thing is working fine for my colleague.