sh: 1: concurrent: not found while npm start
<p>I am trying to setup angular2 on my local machine, I installed node and npm, after installing npm when I do 'npm start' I am getting below error</p>

<pre><code>root@sameer-Vostro-2520:/home/sameer/angular2/angular-2-beta-boilerplate# npm start

&gt; angular2-boilerplate@1.0.0 start /home/sameer/angular2/angular-2-beta-boilerplate
&gt; concurrent "npm run gulp" "npm run lite" 

sh: 1: concurrent: not found
npm ERR! weird error 127
npm WARN This failure might be due to the use of legacy binary "node"
npm WARN For further explanations, please read
/usr/share/doc/nodejs/README.Debian

npm ERR! not ok code 0
</code></pre>

<p>How can we fix this?</p>

<p>installed concurrent but again same error </p>

<pre><code>concurrently@2.2.0 /root/.node/lib/node_modules/concurrently
├── commander@2.6.0
├── bluebird@2.9.6
├── cross-spawn@0.2.9 (lru-cache@2.7.3)
├── moment@2.14.1
├── rx@2.3.24
├── lodash@4.13.1
└── chalk@0.5.1 (supports-color@0.2.0, escape-string-regexp@1.0.5, ansi-styles@1.1.0, strip-ansi@0.3.0, has-ansi@0.1.0)



&gt; angular2-boilerplate@1.0.0 start /home/sameer/angular2/angular-2-beta-boilerplate
&gt; concurrent "npm run gulp" "npm run lite" 

/usr/bin/env: node: No such file or directory
npm ERR! weird error 127
npm WARN This failure might be due to the use of legacy binary "node"
npm WARN For further explanations, please read
/usr/share/doc/nodejs/README.Debian

npm ERR! not ok code 0
</code></pre>