Hello. While walking through this part of the course, I get an error with the fetchData function.

func fetchData(from urlString: String) -> Result<String, NetworkError> { .failure(.badURL) }

I get the following messages

Cannot specialize non-generic type 'Result'
Cannot infer contextual base in reference to member 'badURL'

Is there anything wrong in the code or the way to use Result type ?

Do you have a type called Result defined somewhere that could be interfering with the built-in Result?

Yes! I had a 'struct Result' somewhere else. I've renamed it, problem fixed. Thanks a lot for your help.