Can not isntall angular-cli or use ng command in MAC El-Capitan

[dipcse07]

I am using osX El Capitan
my node version is 6.6.0

When i try to install angular-cli with sudo there is so many warnings and error and after the command completes the installation when is write ng --version it gives me these errors :(

MDSAZIDs-iMac:~ MYMAC$ ng --version

fs.js:640 return binding.open(pathModule._makeLong(path), stringToFlags(flags), mode); ^

TypeError: path must be a string or Buffer

at TypeError (native)
at Object.fs.openSync (fs.js:640:18)
at Object.fs.readFileSync (fs.js:508:33)
at Function.Version.fromProject (/usr/local/lib/node_modules/angular-cli/upgrade/version.js:87:31)
at Function.Version.isPreWebpack (/usr/local/lib/node_modules/angular-cli/upgrade/version.js:111:31)
at Function.Version.assertPostWebpackVersion (/usr/local/lib/node_modules/angular-cli/upgrade/version.js:97:18)
at /usr/local/lib/node_modules/angular-cli/bin/ng:25:15
at /usr/local/lib/node_modules/angular-cli/node_modules/resolve/lib/async.js:44:21
at ondir (/usr/local/lib/node_modules/angular-cli/node_modules/resolve/lib/async.js:187:31)
at /usr/local/lib/node_modules/angular-cli/node_modules/resolve/lib/async.js:153:39

[alielzei]

same issue please help

[erezBk]

same issue ...
mac - el-capitan
node - v4.5.0
npm - 3.10.8

[matt-erhart]

Same on windows 10, node v6.6.0, npm 3.9.6.

[vadost]

Same on ubuntu 14.04, node v6.7.0, npm 3.10.3. Please help!

[filipesilva]

Dupe of #2135

[santlico]

for me i'm using mac and i fix it by using
sudo npm install -g angular-cli

i hope it's help u :)

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