urllib3.exceptions.ProtocolError: (‘Connection aborted.’, error(10054, ‘An existing connection was forcibly closed by the remote host’))

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This error message…

urllib3.exceptions.ProtocolError: ('Connection aborted.', error(10054, 'An existing connection was forcibly closed by the remote host'))

…implies that the ChromeDriver was unable to initiate/spawn a new WebBrowser i.e. Chrome Browser session.

Your main issue is the incompatibility between the version of the binaries you are using as follows:

  • You are using chromedriver=2.20
  • Release Notes of chromedriver=2.20 clearly mentions the following :

Supports Chrome v43-48

  • You are using chrome=68.0
  • Release Notes of ChromeDriver v2.41 clearly mentions the following :

Supports Chrome v67-69

So there is a clear mismatch between ChromeDriver v2.33 and the Chrome Browser v65.0

Solution

  • Upgrade ChromeDriver to current ChromeDriver v2.41 level.
  • Keep Chrome version between Chrome v67-69 levels. (as per ChromeDriver v2.41 release notes)
  • Clean your Project Workspace through your IDE and Rebuild your project with required dependencies only.
  • If your base Web Client version is too old, then uninstall it and install a recent GA and released version of Web Client.
  • Execute your @Test.

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