Trying to build a Mock Server for the Fortune Cookie API: followed all steps precisely as in the book. However got the following error at end:
> Apple Swift version 5.0.1 (swiftlang-1001.0.82.4 clang-1001.0.46.5)
> Target: x86_64-apple-darwin18.5.0
*> Error swiftserver *
> Swift version 4 is required for Swift Server Generator.
Please advise.
Thanks
Roman