Nightwatch: Environment not specified error

[therebelrobot]

So I'm trying to run the nightwatch mocha sample test, and I get the following error:

└─[$] nightwatch -c nightwatch.js -g test/e2e --env default                   ◈ (ruby-2.2.1) ⧂ (go1.4) ⬡ (node-5.3.0) [16:07:56]
ERROR SyntaxError: Unexpected token :
    at exports.runInThisContext (vm.js:53:16)
    at Module._compile (module.js:374:25)
    at Object.Module._extensions..js (module.js:405:10)
    at Module.load (module.js:344:32)
    at Function.Module._load (module.js:301:12)
    at Module.require (module.js:354:17)
    at require (internal/module.js:12:17)
    at Object.CliRunner.readSettings (/Users/therebelrobot/.nvm/versions/node/v5.3.0/lib/node_modules/nightwatch/lib/runner/cli/clirunner.js:89:23)
    at Object.CliRunner.setup (/Users/therebelrobot/.nvm/versions/node/v5.3.0/lib/node_modules/nightwatch/lib/runner/cli/clirunner.js:49:8)
    at Object.exports.runner (/Users/therebelrobot/.nvm/versions/node/v5.3.0/lib/node_modules/nightwatch/lib/index.js:540:17)
ERROR There was an error while starting the test runner:


Error: No testing environment specified.
    at Object.CliRunner.parseTestSettings (/Users/therebelrobot/.nvm/versions/node/v5.3.0/lib/node_modules/nightwatch/lib/runner/cli/clirunner.js:441:13)
    at Object.CliRunner.setup (/Users/therebelrobot/.nvm/versions/node/v5.3.0/lib/node_modules/nightwatch/lib/runner/cli/clirunner.js:51:8)
    at Object.exports.runner (/Users/therebelrobot/.nvm/versions/node/v5.3.0/lib/node_modules/nightwatch/lib/index.js:540:17)
    at /Users/therebelrobot/.nvm/versions/node/v5.3.0/lib/node_modules/nightwatch/bin/runner.js:9:16
    at Object.exports.cli (/Users/therebelrobot/.nvm/versions/node/v5.3.0/lib/node_modules/nightwatch/lib/index.js:534:5)
    at Object.<anonymous> (/Users/therebelrobot/.nvm/versions/node/v5.3.0/lib/node_modules/nightwatch/bin/runner.js:8:14)
    at Module._compile (module.js:398:26)
    at Object.Module._extensions..js (module.js:405:10)
    at Module.load (module.js:344:32)
    at Function.Module._load (module.js:301:12)

Here is my nightwatch.js:

{
  "src_folders" : ["test/e2e"],
  "output_folder" : "reports",
  "custom_commands_path" : "",
  "custom_assertions_path" : "",
  "page_objects_path" : "",
  "globals_path" : "",

  "test_runner" : {
    "type" : "mocha",
    "options" : {
      "ui" : "bdd",
      "reporter" : "list"
    }
  },

  "selenium" : {
    "start_process" : false,
    "server_path" : "",
    "log_path" : "",
    "host" : "127.0.0.1",
    "port" : 4444,
    "cli_args" : {
      "webdriver.chrome.driver" : "",
      "webdriver.ie.driver" : ""
    }
  },

  "test_settings" : {
    "default" : {
      "launch_url" : "http://localhost",
      "selenium_port"  : 4444,
      "selenium_host"  : "localhost",
      "silent": true,
      "screenshots" : {
        "enabled" : true,
        "path" : "reports/error-screenshots"
      },
      "desiredCapabilities": {
        "browserName": "firefox",
        "javascriptEnabled": true,
        "acceptSslCerts": true
      }
    },

    "chrome" : {
      "desiredCapabilities": {
        "browserName": "chrome",
        "javascriptEnabled": true,
        "acceptSslCerts": true
      }
    }
  }
}

and the only test, test/e2e/tester.js:

describe('Google demo test for Mocha', function () {
  describe('with Nightwatch', function () {
    before(function (client, done) {
      done()
    })

    after(function (client, done) {
      client.end(function () {
        done()
      })
    })

    afterEach(function (client, done) {
      done()
    })

    beforeEach(function (client, done) {
      done()
    })

    it('uses TDD to run the Google simple test', function (client) {
      client
        .url('http://google.com')
        .expect.element('body').to.be.present.before(1000)

      client.setValue('input[type=text]', ['nightwatch', client.Keys.ENTER])
        .pause(1000)
        .assert.containsText('#main', 'Night Watch')
    })
  })
})

I'm not sure if I missing something? I've got nightwatch installed globally, and made sure my selenium server is running while I do this. Here are my environment details:

• Mac OS X 10.10.5 (14F27)
• NVM v0.24.0
• Node v5.3.0
• Selenium v2.48.2
• Nightwatch v0.8.15

[therebelrobot]

omg. I'm moronic. It was a problem with the nightwatch.js file, it's supposed to be a json file. changed the extension, working like a charm.

[nebulous]

Thanks @therebelrobot. I made the same error and your comment saved me from additional headbanging.