title: Grunt not outputting, returning error
body: <p>I run a website which uses Grunt to collect all of my assets into a compiled bundle (translating Less into CSS, translating TS into JS, running tests, etc.). I recently moved to a new computer. Although my source files (including package.json, Gruntfile, pom.xml, etc.) are store in the project's Git repo, I needed to redo <code>npm install</code>, etc. All of this is automated through Maven, using <code>grunt-maven-plugin</code>, with the <code>npm-compile</code> and <code>grunt-compile</code> goals.</p>
  
  <p>I installed grunt with <code>sudo npm install -g grunt-cli</code>, then ran <code>mvn package</code> to set up my project. It ran into a few issues installing all my node dependencies, but ultimately got past that. Then it just printed this:</p>
  
  <pre><code>[INFO] --- grunt-maven-plugin:1.4.1:grunt (grunt-build) @ Website ---
  [INFO] OS Name: Linux
  [INFO] ------------------------------------------------------------------------
  [INFO] BUILD FAILURE
  [INFO] ------------------------------------------------------------------------
  [INFO] Total time: 13.103s
  [INFO] Finished at: Tue May 26 22:53:58 PDT 2015
  [INFO] Final Memory: 26M/304M
  [INFO] ------------------------------------------------------------------------
  [ERROR] Failed to execute goal pl.allegro:grunt-maven-plugin:1.4.1:grunt (grunt-build) on project Website: Unable to execute mojo: Command execution failed. Process exited with an error: 1 (Exit value: 1) -&gt; [Help 1]
  </code></pre>
  
  <p>Okay, so...Grunt's returning a value of 1. Certainly strange -- I'd never heard of it before.</p>
  
  <p>Long story short, when I started messing with it, I realized grunt wasn't printing anything:</p>
  
  <pre><code>[user@computer] ~ $ grunt
  [user@computer] ~ $ grunt --version
  [user@computer] ~ $ grunt --help
  [user@computer] ~ $
  </code></pre>
  
  <p>Grunt's definitely installed. <code>whereis grunt</code> returns <code>/usr/local/bin/grunt</code>, which is a symlink to <code>/usr/local/lib/node_modules/grunt/bin/grunt</code>, which seems to be the standard install directory for global packages.</p>
  
  <p>I have no idea where to go from here. I've tried uninstalling and reinstalling grunt (both by doing <code>npm uninstall -g grunt-cli</code> and by manually deleting the node_modules folder [it's all that was in it]). And yes, the <code>grunt</code> package is installed locally in the project. Please help.</p>
  
  <p>I'm running Linux Mint 17.3 Rebecca, and I confirmed I'm running the latest versions of npm, grunt, etc.</p>