On my Mac Sierra i’ve Nodejs 7.4.0 and i’ve tried to install Ionic so:
sudo npm install -g cordova ionic
npm WARN deprecated node-uuid@1.4.7: use uuid module instead
npm WARN deprecated minimatch@0.2.14: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated minimatch@0.3.0: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated minimatch@2.0.10: Please update to minimatch 3.0.2 or higher to avoid a RegExp DoS issue
npm WARN deprecated node-uuid@1.3.3: use uuid module instead
/usr/local/lib
└─┬ cordova@6.4.0
├─┬ cordova-common@1.5.1
│ └── osenv@0.1.4
├─┬ cordova-lib@6.4.0
│ ├─┬ cordova-js@4.2.0
│ │ └─┬ browserify@13.1.0
│ │ ├─┬ browser-resolve@1.11.2
│ │ │ └── resolve@1.1.7
│ │ ├─┬ crypto-browserify@3.11.0
│ │ │ └─┬ browserify-sign@4.0.0
│ │ │ └─┬ parse-asn1@5.0.0
│ │ │ └── asn1.js@4.9.1
│ │ ├── JSONStream@1.3.0
│ │ ├── resolve@1.2.0
│ │ └─┬ stream-http@2.6.0
│ │ └── builtin-status-codes@3.0.0
│ ├── cordova-serve@1.0.1
│ └─┬ init-package-json@1.9.4
│ └─┬ read@1.0.7
│ └── mute-stream@0.0.7
└─┬ insight@0.8.4
├─┬ configstore@1.4.0
│ └── write-file-atomic@1.3.0
└─┬ request@2.79.0
├─┬ har-validator@2.0.6
│ └─┬ is-my-json-valid@2.15.0
│ └── jsonpointer@4.0.1
└─┬ http-signature@1.1.1
└─┬ sshpk@1.10.1
└── tweetnacl@0.14.5
npm WARN In ionic@2.1.18 replacing bundled version of cross-spawn with cross-spawn@4.0.2
npm WARN In ionic@2.1.18 replacing bundled version of semver with semver@4.2.0
npm WARN In ionic@2.1.18 replacing bundled version of mime-types with mime-types@2.0.14
npm WARN In ionic@2.1.18 replacing bundled version of form-data with form-data@0.2.0
npm WARN In ionic@2.1.18 replacing bundled version of request with request@2.51.0
npm WARN In ionic@2.1.18 replacing bundled version of ionic-app-lib with ionic-app-lib@2.1.9
npm ERR! Darwin 16.3.0
npm ERR! argv “/usr/local/bin/node” “/usr/local/bin/npm” “install” “-g” “cordova” "ionic"
npm ERR! node v7.4.0
npm ERR! npm v4.0.5
npm ERR! path /usr/local/lib/node_modules/.staging/ansi-392b32ed
npm ERR! code ENOENT
npm ERR! errno -2
npm ERR! syscall rename
npm ERR! enoent ENOENT: no such file or directory, rename ‘/usr/local/lib/node_modules/.staging/ansi-392b32ed’ -> '/usr/local/lib/node_modules/ionic/node_modules/cordova-lib/node_modules/ansi’
npm ERR! enoent ENOENT: no such file or directory, rename ‘/usr/local/lib/node_modules/.staging/ansi-392b32ed’ -> '/usr/local/lib/node_modules/ionic/node_modules/cordova-lib/node_modules/ansi’
npm ERR! enoent This is most likely not a problem with npm itself
npm ERR! enoent and is related to npm not being able to find a file.
npm ERR! enoent
npm ERR! Please include the following file with any support request:
npm ERR! /Users/mauro/Documents/Ionic Apps/npm-debug.log
Some help? thanks