ng doesn't work at all

[invious]

So even after I do npm install -g reflect-metadata and the local version, it still gives me Cannot find module 'reflect-metadata'

Cannot find module 'reflect-metadata'
Error: Cannot find module 'reflect-metadata'
    at Function.Module._resolveFilename (module.js:469:15)
    at Function.Module._load (module.js:417:25)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/usr/local/lib/node_modules/angular-cli/node_modules/@ngtools/webpack/src/index.js:5:1)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/usr/local/lib/node_modules/angular-cli/models/webpack-build-typescript.js:5:17)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/usr/local/lib/node_modules/angular-cli/models/webpack-config.js:2:34)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/usr/local/lib/node_modules/angular-cli/tasks/build-webpack.js:6:24)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Object.<anonymous> (/usr/local/lib/node_modules/angular-cli/commands/build.js:3:23)
    at Module._compile (module.js:570:32)
    at Object.Module._extensions..js (module.js:579:10)
    at Module.load (module.js:487:32)
    at tryModuleLoad (module.js:446:12)
    at Function.Module._load (module.js:438:3)
    at Module.require (module.js:497:17)
    at require (internal/module.js:20:19)
    at Class.includedCommands (/usr/local/lib/node_modules/angular-cli/addon/index.js:21:16)
    at /usr/local/lib/node_modules/angular-cli/node_modules/angular-cli/lib/models/project.js:392:61
    at Array.forEach (native)
    at Project.addonCommands (/usr/local/lib/node_modules/angular-cli/node_modules/angular-cli/lib/models/project.js:391:15)
    at Project.eachAddonCommand (/usr/local/lib/node_modules/angular-cli/node_modules/angular-cli/lib/models/project.js:426:30)
    at module.exports (/usr/local/lib/node_modules/angular-cli/node_modules/angular-cli/lib/cli/lookup-command.js:33:13)
    at CLI.<anonymous> (/usr/local/lib/node_modules/angular-cli/node_modules/angular-cli/lib/cli/cli.js:34:26)
    at tryCatch (/usr/local/lib/node_modules/angular-cli/node_modules/angular-cli/node_modules/rsvp/dist/rsvp.js:538:12)
    at invokeCallback (/usr/local/lib/node_modules/angular-cli/node_modules/angular-cli/node_modules/rsvp/dist/rsvp.js:553:13)
    at publish (/usr/local/lib/node_modules/angular-cli/node_modules/angular-cli/node_modules/rsvp/dist/rsvp.js:521:7)
    at flush (/usr/local/lib/node_modules/angular-cli/node_modules/angular-cli/node_modules/rsvp/dist/rsvp.js:2373:5)
    at _combinedTickCallback (internal/process/next_tick.js:67:7)
    at process._tickCallback (internal/process/next_tick.js:98:9)

I have node v6.9.1 and npm v3.10.8. Running OSX 10.12 (16A323) I've tried the following:

ng new angular2-todo-app
npm install -g angular-cli
npm i -g reflect-metadata
npm uninstall -g angular-cli
npm cache clean
npm install -g angular-cli
npm i -g reflect-metadata
npm i -g portfinder
ng new angular2-todo-app  # fails
npm i reflect-metadata
npm i portfinder
ng new angular2-todo-app  # fails
ng -v  # fails
npm i npm@latest -g
sudo npm install -g angular-cli
sudo npm i -g reflect-metadata

None have worked

[hassanasad]

try using npm install -g angular-cli@latest

[filipesilva]

Dupe of #1930.

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