v0.26.0 exception on start: System.InvalidOperationException: Unable to find a matching set of capabilities (SessionNotCreated)

[hheexx]

System

• Version: 0.26
• Platform: Windows 10
• Firefox: 70b14
• Selenium: .NET 3.141

Testcase

Replaced 0.25 with 0.26.
Exception thrown on Firefox start.

Stacktrace

System.InvalidOperationException: Unable to find a matching set of capabilities (SessionNotCreated)

[andreastt]

Could you please attach a trace-level log from geckodriver? Read more about reporting actionable bugs in our contribution guidelines.

[hheexx]

Problem is between x32 and x64.
x64 works but x32 throws this exception.

There is no trace log. Geckodriver won't even start.

[whimboo]

If geckodriver doesn't start then it is issue #1617, which we haven't fixed yet. Otherwise I assume that you are not specifying any path to Firefox, and used the win32 geckodriver binary on a Windows 10 64 bit system? I just uploaded the win64 geckodriver binary, and it should all work now.

@hheexx, can you please confirm?

[hheexx]

Works with 64, that was a problem....

Thanks!

[whimboo]

Great. So it's a dupe of issue #1630.

[lock]

This issue has been automatically locked since there has not been any recent activity after it was closed. If you have run into an issue you think is related, please open a new issue.