title: Contextify install fails - "node: not found"
body: <p>I cannot get Contextify to install on my system. I am running Ubuntu 14.04, node.js version 0.10.25, npm version 1.3.10, with node-gyp version 0.10.10</p>
  
  <p>I've tried upgrading, restarting, installing dependencies first, everything. Nothing will get it to work.</p>
  
  <pre><code>~$ sudo npm install -g contextify
  npm http GET https://registry.npmjs.org/contextify
  npm http 304 https://registry.npmjs.org/contextify
  npm http GET https://registry.npmjs.org/bindings
  npm http GET https://registry.npmjs.org/nan
  npm http 304 https://registry.npmjs.org/bindings
  npm http 304 https://registry.npmjs.org/nan
  
  &gt; contextify@0.1.8 install /usr/local/lib/node_modules/contextify
  &gt; node-gyp rebuild
  
  /bin/sh: 1: node: not found
  gyp: Call to 'node -e "require('nan')"' returned exit status 127. while trying to load binding.gyp
  gyp ERR! configure error 
  gyp ERR! stack Error: `gyp` failed with exit code: 1
  gyp ERR! stack     at ChildProcess.onCpExit (/usr/share/node-gyp/lib/configure.js:431:16)
  gyp ERR! stack     at ChildProcess.EventEmitter.emit (events.js:98:17)
  gyp ERR! stack     at Process.ChildProcess._handle.onexit (child_process.js:797:12)
  gyp ERR! System Linux 3.13.0-29-generic
  gyp ERR! command "nodejs" "/usr/bin/node-gyp" "rebuild"
  gyp ERR! cwd /usr/local/lib/node_modules/contextify
  gyp ERR! node -v v0.10.25
  gyp ERR! node-gyp -v v0.10.10
  gyp ERR! not ok 
  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! weird error 1
  npm ERR! not ok code 0
  </code></pre>