Errors

“Expected browser binary location, but unable to find binary in default location”

When you have the Firefox browser installed in an unusual directory (that is, not the default directory) or when you don't have Firefox installed, this error message will show up. If you don't have Firefox installed, do it; if it's already installed, you need to change the "firefox_directory.txt" file so it can detect where the Firefox driver is. You can read this StackOverflow answer for more information.

"Response status code does not indicate success: 429 (Too Many Requests)"

As the title implies, the server can't handle too many requests in a short period of time. If you get this error, wait some time until you try to run the program again.

"error CS0101: The namespace '' already contains a definition for 'Kata'"

This is a curious error that appears when you try to run the program and there is more than one definition of a "Kata" class. Depending on the creator of the kata, they might have named the main class "Kata" (which is a common name to choose); the .NET runtime gets confused as it notices there are more than one class with the same name in the "global namespace" (as namespaces in C# katas are sometimes left apart). This can happen with any other name as well, although it's restrained to C# code files. At the moment, there's no solution for this. Delete the whole "Katas" folder and run the program to start from the beginning.