npm install -g angular-cli sh：1：node：not found

npm install -g @angular/cli

试图在ubuntu 16.10中安装angular-cli,我在sass上遇到以下错误.

/home/user1/.npm-packages/bin/ng -> /home/user1/.npm-packages/lib/node_modules/@angular/cli/bin/ng

> node-sass@4.5.0 install /home/user1/.npm-packages/lib/node_modules/@angular/cli/node_modules/node-sass
> node scripts/install.js

sh: 1: node: not found
/home/user1/.npm-packages/lib
└── (empty)

npm WARN optional Skipping failed optional dependency /@angular/cli/chokidar/fsevents:
npm WARN notsup Not compatible with your operating system or architecture: fsevents@1.0.17
npm WARN @angular/core@2.4.6 requires a peer of rxjs@^5.0.1 but none was installed.
npm ERR! Linux 4.8.0-22-generic
npm ERR! argv "/usr/bin/nodejs" "/usr/bin/npm" "install" "-g" "@angular/cli"
npm ERR! node v4.2.6
npm ERR! npm  v3.5.2
npm ERR! file sh
npm ERR! code ELIFECYCLE
npm ERR! errno ENOENT
npm ERR! syscall spawn

npm ERR! node-sass@4.5.0 install: `node scripts/install.js`
npm ERR! spawn ENOENT
npm ERR! 
npm ERR! Failed at the node-sass@4.5.0 install script 'node scripts/install.js'.

注意：我在新机器上,第一次设置npm / angular.