No implementation of method: :make-reader of protocol: #'clojure.java.io/IOFactory found for class: nil
问题 I'm very new to Clojure and I'm having a great time playing with it. One thing I'm having some trouble with is how to read the errors, I personally think they're not very descriptive, but that's probably due to my "newbieness". For example, the issue I'm having now is when I try to start up my ring server (I can provide more details if needed): Started server on port 3000 java.lang.IllegalArgumentException: No implementation of method: :make-reader of protocol: #'clojure.java.io/IOFactory