title: WebDriverError: unknown error: chrome failed to start.(Driver info: chromedriver=2.25.426923),platform=Windows NT 6.1.7601 SP1 x86_64)
body: <p><strong>My Configuration:</strong></p>
  
  <ul>
  <li>npm: 3.10.0</li>
  <li>protractor: 4.10.3</li>
  <li>Chrome: 55</li>
  <li>chromedriver Version: chromedriver_2.25</li>
  </ul>
  
  <p>Unable to execute any file in protractor.</p>
  
  <p><strong>Command prompt status:</strong>  </p>
  
  <pre><code>C:\Users\rmomin\AppData\Roaming\npm\node_modules\protractor\node_modules\webdriv
  er-manager\selenium\report\report&gt;protractor conf.js
  Report destination:   C:\Users\rmomin\report\report\screenshots\my-report.html
  (node:3580) DeprecationWarning: os.tmpDir() is deprecated. Use os.tmpdir() inste
  ad.
  [11:55:57] I/launcher - Running 3 instances of WebDriver
  [11:56:01] I/testLogger -
  ------------------------------------
  
  [11:56:01] I/testLogger - [chrome #01-2] PID: 8956
  [chrome #01-2] Specs: C:\Users\rmomin\AppData\Roaming\npm\node_modules\protracto
  r\node_modules\webdriver-manager\selenium\report\report\02-discussions.js
  [chrome #01-2]
  [chrome #01-2] (node:8956) DeprecationWarning: os.tmpDir() is deprecated. Use os
  .tmpdir() instead.
  [chrome #01-2] [11:55:57] I/local - Starting selenium standalone server...
  [chrome #01-2] [11:55:59] I/local - Selenium standalone server started at http:/
  /10.165.6.34:38852/wd/hub
  [chrome #01-2]
  [chrome #01-2] C:\Users\rmomin\AppData\Roaming\npm\node_modules\protractor\node_
  modules\selenium-webdriver\lib\error.js:639
  [chrome #01-2]         throw new ctor(message);
  [chrome #01-2]               ^
  [chrome #01-2] WebDriverError: unknown error: chrome failed to start
  [chrome #01-2]   (Driver info: chromedriver=2.25.426923 (0390b88869384d6eb0d5d09
  729679f934aab9eed),platform=Windows NT 6.1.7601 SP1 x86_64) (WARNING: The server
   did not provide any stacktrace information)
  [chrome #01-2] Command duration or timeout: 723 milliseconds
  [chrome #01-2] Build info: version: '2.53.1', revision: 'a36b8b1', time: '2016-0
  6-30 17:37:03'
  [chrome #01-2] System info: host: 'rmomin-PC', ip: '192.168.56.1', os.name: 'Win
  dows 7', os.arch: 'amd64', os.version: '6.1', java.version: '1.8.0_65'
  [chrome #01-2] Driver info: org.openqa.selenium.chrome.ChromeDriver
  [chrome #01-2]     at Object.checkLegacyResponse (C:\Users\rmomin\AppData\Roamin
  g\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\error.js:639:1
  5)
  [chrome #01-2]     at parseHttpResponse (C:\Users\rmomin\AppData\Roaming\npm\nod
  e_modules\protractor\node_modules\selenium-webdriver\http\index.js:538:13)
  [chrome #01-2]     at client_.send.then.response (C:\Users\rmomin\AppData\Roamin
  g\npm\node_modules\protractor\node_modules\selenium-webdriver\http\index.js:472:
  11)
  [chrome #01-2]     at ManagedPromise.invokeCallback_ (C:\Users\rmomin\AppData\Ro
  aming\npm\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js
  :1379:14)
  [chrome #01-2]     at TaskQueue.execute_ (C:\Users\rmomin\AppData\Roaming\npm\no
  de_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:2913:14)
  [chrome #01-2]     at TaskQueue.executeNext_ (C:\Users\rmomin\AppData\Roaming\np
  m\node_modules\protractor\node_modules\selenium-webdriver\lib\promise.js:2896:21
  )
  [chrome #01-2]     at asyncRun (C:\Users\rmomin\AppData\Roaming\npm\node_modules
  \protractor\node_modules\selenium-webdriver\lib\promise.js:2820:25)
  [chrome #01-2]     at C:\Users\rmomin\AppData\Roaming\npm\node_modules\protracto
  r\node_modules\selenium-webdriver\lib\promise.js:639:7
  [chrome #01-2]     at process._tickCallback (internal/process/next_tick.js:103:7
  )
  [chrome #01-2] From: Task: WebDriver.createSession()
  [chrome #01-2]     at Function.createSession (C:\Users\rmomin\AppData\Roaming\np
  m\node_modules\protractor\node_modules\selenium-webdriver\lib\webdriver.js:329:2
  4)
  [chrome #01-2]     at Builder.build (C:\Users\rmomin\AppData\Roaming\npm\node_mo
  dules\protractor\node_modules\selenium-webdriver\builder.js:458:24)
  [chrome #01-2]     at Local.DriverProvider.getNewDriver (C:\Users\rmomin\AppData
  \Roaming\npm\node_modules\protractor\built\driverProviders\driverProvider.js:37:
  33)
  [chrome #01-2]     at Runner.createBrowser (C:\Users\rmomin\AppData\Roaming\npm\
  node_modules\protractor\built\runner.js:198:43)
  [chrome #01-2]     at C:\Users\rmomin\AppData\Roaming\npm\node_modules\protracto
  r\built\runner.js:277:30
  [chrome #01-2]     at _fulfilled (C:\Users\rmomin\AppData\Roaming\npm\node_modul
  es\protractor\node_modules\q\q.js:834:54)
  [chrome #01-2]     at self.promiseDispatch.done (C:\Users\rmomin\AppData\Roaming
  \npm\node_modules\protractor\node_modules\q\q.js:863:30)
  [chrome #01-2]     at Promise.promise.promiseDispatch (C:\Users\rmomin\AppData\R
  oaming\npm\node_modules\protractor\node_modules\q\q.js:796:13)
  [chrome #01-2]     at C:\Users\rmomin\AppData\Roaming\npm\node_modules\protracto
  r\node_modules\q\q.js:604:44
  [chrome #01-2]     at runSingle (C:\Users\rmomin\AppData\Roaming\npm\node_module
  s\protractor\node_modules\q\q.js:137:13)
  
  [11:56:01] I/testLogger -
  
  [11:56:01] E/launcher - Runner process exited unexpectedly with error code: 1
  [11:56:01] I/launcher - 2 instance(s) of WebDriver still running
  [11:56:01] I/testLogger -
  
  [11:56:01] I/testLogger -
  
  [11:56:01] E/launcher - Runner process exited unexpectedly with error code: 1
  [11:56:01] I/launcher - 0 instance(s) of WebDriver still running
  [11:56:01] I/launcher - chrome #01-2 failed with exit code: 1
  [11:56:01] I/launcher - chrome #01-1 failed with exit code: 1
  [11:56:01] I/launcher - chrome #01-0 failed with exit code: 1
  [11:56:01] I/launcher - overall: 3 process(es) failed to complete
  Closing report
  [11:56:01] E/launcher - Process exited with error code 100
  </code></pre>