title: Selenium unexpectedly having issues
body: <p>I have been using selenium now for a while on a number of projects.</p>
  
  <p>With code that was running I am now receiving the following error:</p>
  
  <pre><code>    C:\Users\%USER%\Miniconda\python.exe C:/Users/%USER%/PycharmProjects/c_r/quick_debug.py
      Traceback (most recent call last):
        File "C:/Users/%USER%/PycharmProjects/c_r/quick_debug.py", line 17, in &lt;module&gt;
          c.setUp()
        File "C:\Users\%USER%\PycharmProjects\c_r\c.py", line 40, in setUp
          self.driver = webdriver.Chrome()
        File "C:\Users\%USER%\Miniconda\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 67, in __init__
          desired_capabilities=desired_capabilities)
        File "C:\Users\%USER%\Miniconda\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 87, in __init__
          self.start_session(desired_capabilities, browser_profile)
        File "C:\Users\%USER%\Miniconda\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 141, in start_session
          'desiredCapabilities': desired_capabilities,
        File "C:\Users\%USER%\Miniconda\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 201, in execute
          self.error_handler.check_response(response)
        File "C:\Users\%USER%\Miniconda\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 181, in check_response
          raise exception_class(message, screen, stacktrace)
      selenium.common.exceptions.WebDriverException: Message: unknown error: unrecognized Blink revision: 3b3c00f2d95c45cca18ab944acced413fb759311
        (Driver info: chromedriver=2.10.267521,platform=Windows NT 6.3 x86_64)
  
  
      Process finished with exit code 1
  </code></pre>
  
  <p>where <code>c.setUp()</code> is:</p>
  
  <pre><code>def setUp(self):
     self.driver = webdriver.Chrome()
  </code></pre>
  
  <p>Again -  this is code that WAS running and I am unsure how to this "Unrecognized blink revision" error.</p>
  
  <p>Nothing has consciously changed.</p>
  
  <p>Thank you for any pointers</p>