I am trying to run selenium using chrome-driver in my project. While creating object of chrome-driver facing errors :

Message "unknown error: cannot find Chrome binary\n (Driver info: chromedriver=81.0.4044.20

Please let me know if anyone face/fix this issue.

Error 1 :

{"unknown error: Chrome failed to start: crashed.\n (unknown error: DevToolsActivePort file doesn't exist)

Error 2 :

{"unknown error: Failed to create a Chrome process.\n (Driver info: chromedriver=2.41.578737

1 Answer 1


Chrome is currently on v91 and it needs a driver to match. Install Chrome in its default location and make sure it is updated. Then get the latest Chromedriver. There's a NuGet package for chromedriver if you prefer to manage it that way.

  • Thanks for quick response @kirbycope. yes I have installed chrome v 90.0. matched chrome-driver and req. NuGet packages has been installed. No error observed. Still getting error - Failed to crated a Chrome process\n . . . Commented Apr 28, 2021 at 14:23
  • 1
    @NarendraC note he said Chrome is on v91, not v90, which you've mentioned...
    – Mark Mayo
    Commented Apr 29, 2021 at 1:18
  • Yeah, the joy of auto updates.
    – kirbycope
    Commented Apr 29, 2021 at 3:19
  • @MarkMayo Thanks . Yes I have tried with v91 and v90. Today I am planning to downgrade even further, That is the only option I can see as of now. Commented Apr 30, 2021 at 5:27
  • Matched chrome & driver version. Installed chrome in its default location @kirbycope as suggested.Still observed errors. Small fine tuning resolve issue. Catch was - I uninstalled my Chrome browser manually and install it again. Voila :) Everything started working as expected. Commented May 4, 2021 at 6:20

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