title: Cordova - Current working directory is not a Cordova-based project
body: <p>I'm using phonegap for my mobile project. My question is why I got this error when I try to search phonegap plugin using cordova CLI? I run this command in terminal to search phonegap plugin</p>
  
  <pre><code>cordova plugin search bar code
  </code></pre>
  
  <p>Full error message</p>
  
  <pre><code>Last login: Wed Jan 22 15:04:09 on ttys000
  Mohammads-MacBook-Pro:~ mohammadnurdin$ cd /Applications/MAMP/htdocs/rmbp/apps/rmbp/iphone/native
  Mohammads-MacBook-Pro:native mohammadnurdin$ cordova plugin search bar code
  
  /usr/local/lib/node_modules/cordova/src/util.js:57
              throw new Error('Current working directory is not a Cordova-based 
                    ^
  Error: Current working directory is not a Cordova-based project.
      at Object.module.exports.cdProjectRoot (/usr/local/lib/node_modules/cordova/src/util.js:57:19)
      at CLI.plugin (/usr/local/lib/node_modules/cordova/src/plugin.js:28:36)
      at new CLI (/usr/local/lib/node_modules/cordova/src/cli.js:109:30)
      at Object.&lt;anonymous&gt; (/usr/local/lib/node_modules/cordova/bin/cordova:41:16)
      at Module._compile (module.js:456:26)
      at Object.Module._extensions..js (module.js:474:10)
      at Module.load (module.js:356:32)
      at Function.Module._load (module.js:312:12)
      at Function.Module.runMain (module.js:497:10)
      at startup (node.js:119:16)
  Mohammads-MacBook-Pro:native mohammadnurdin$ 
  </code></pre>