title: Nightwatch chromedriver
body: <p>I can't run nightwatch to run tests on chrome.  </p>
  
  <p>Here is my modified nightwatch.json that I downloaded from the nightwatch example:</p>
  
  <pre><code>{
    "src_folders" : ["./examples/tests"],
    "output_folder" : "./examples/reports",
    "custom_commands_path" : "./examples/custom-commands",
    "custom_assertions_path" : "",
    "globals_path" : "./examples/globals.json",
    "live_output" : false,
  
    "selenium" : {
      "start_process" : false,
      "server_path" : "/lib/sel-serv.jar",
      "log_path" : "",
      "host" : "127.0.0.1",
      "port" : 4444,
      "cli_args" : {
        "webdriver.chrome.driver" : "/lib/chromedriver/chromedriver.exe",
        "webdriver.ie.driver" : "",
        "webdriver.firefox.profile" : ""
      }
    },
  
    "test_settings" : {
      "default" : {
        "launch_url" : "http://localhost",
        "selenium_host" : "127.0.0.1",
        "selenium_port" : 4444,
        "silent" : true,
        "disable_colors": false,
        "screenshots" : {
          "enabled" : false,
          "path" : ""
        },
        "chrome":{
        "desiredCapabilities" : {
          "browserName" : "chrome",
          "javascriptEnabled" : true,
          "acceptSslCerts" : true
        }
        }
      },
  
  
        "desiredCapabilities": {
          "name" : "test-example",
          "browserName": "chrome"
        },
        "globals" : {
          "myGlobal" : "some_sauce_global"
        },
        "selenium" : {
          "start_process" : false
        }
    }
  }
  </code></pre>
  
  <p>And I get this error message:</p>
  
  <pre><code>ERROR There was an error while starting the test runner:
  
  
  Error: Invalid testing environment specified: chrome
      at Object.CliRunner.parseTestSettings (/usr/local/lib/node_modules/nightwatch/lib/runner/cli/clirunner.js:448:15)
      at Object.CliRunner.init (/usr/local/lib/node_modules/nightwatch/lib/runner/cli/clirunner.js:49:8)
      at module.exports.runner.runner (/usr/local/lib/node_modules/nightwatch/lib/index.js:546:17)
      at /usr/local/lib/node_modules/nightwatch/bin/runner.js:9:16
      at module.exports.cli.cli (/usr/local/lib/node_modules/nightwatch/lib/index.js:504:5)
      at Object.&lt;anonymous&gt; (/usr/local/lib/node_modules/nightwatch/bin/runner.js:8:14)
      at Module._compile (module.js:409:26)
      at Object.Module._extensions..js (module.js:416:10)
      at Module.load (module.js:343:32)
      at Function.Module._load (module.js:300:12)
  </code></pre>
  
  <p>I also found a older post that says you have to create new file in root directory so give it a try and nothing happened</p>