title: Chromedriver: cannot execute binary file
body: <p>I am getting started with Nighwatch for web testing, and trying to do that with Chrome.</p>
  
  <p>However, when I start the test, it immediately crashes with the following error:</p>
  
  <p><code>17:56:35.218 INFO - Executing: [new session: Capabilities [{acceptSslCerts=true, name=Sandbox, browserName=chrome, javascriptEnabled=true, platform=ANY}]])
  17:56:35.219 INFO - Creating a new session for Capabilities [{acceptSslCerts=true, name=Sandbox, browserName=chrome, javascriptEnabled=true, platform=ANY}]
  /Users/murdockcrc/repos/nightwatch/bin/chromedriver: /Users/murdockcrc/repos/nightwatch/bin/chromedriver: cannot execute binary file</code></p>
  
  <p>I am running the test with the following command:
  <code>./bin/nightwatch --test hdv/tests/sandbox.js --config ./nightwatch.json</code></p>
  
  <p>As far as I am concerned, all paths here are accurate and point to the right files.</p>
  
  <p>Below is my nightwatch configuration file:</p>
  
  <pre><code>{
    "src_folders" : ["./hdv/tests"],
    "output_folder" : "./hdv/reports",
    "custom_commands_path" : "",
    "custom_assertions_path" : "",
    "globals_path" : "",
    "live_output" : true,
    "parallel_process_delay" : 10,
    "disable_colors": false,
    "test_workers" : false,
  
    "selenium" : {
      "start_process" : false,
      "server_path" : "",
      "log_path" : "",
      "host" : "127.0.0.1",
      "port" : 4444,
      "cli_args" : {
        "webdriver.chrome.driver" : "./bin/chromedriver",
        "webdriver.ie.driver" : "",
        "webdriver.firefox.profile" : ""
      }
    },
  
    "test_settings" : {
      "default" : {
        "launch_url" : "http://localhost:3000",
        "selenium_host" : "127.0.0.1",
        "selenium_port" : 4444,
        "silent" : true,
        "disable_colors": false,
        "screenshots" : {
          "enabled" : false,
          "path" : ""
        },
        "desiredCapabilities" : {
          "browserName" : "chrome",
          "javascriptEnabled" : true,
          "acceptSslCerts" : true
        }
      }
    }
  }
  </code></pre>
  
  <p>And finally, here is the test I am trying to run (as you can see, just a placeholder to see if it runs at all):</p>
  
  <pre><code>module.exports = {
    'Demo test Google' : function (browser) {
      browser
        .url('http://www.google.com')
        .waitForElementVisible('body', 1000)
        .setValue('input[type=text]', 'nightwatch')
        .waitForElementVisible('button[name=btnG]', 1000)
        .click('button[name=btnG]')
        .pause(1000)
        .assert.containsText('#main', 'Night Watch')
        .end();
    }
  };
  </code></pre>
  
  <p>Running this same test but with firefox (by changing the nightwatch.json file) does work without issues.</p>
  
  <p>I would appreciate any pointers on what's wrong with this configuration and get it running on Chrome.</p>