When i run lein ring server,it occurs the error

load-file already refers to: #'clojure.core/load-file in namespace: metabase.routes, being replaced by: #'metabase.routes/load-file

Exception in thread “main” java.awt.HeadlessException, compiling:(/tmp/form-init4471326940635545105.clj:1:73)

so please tell me how to solve?

everyone can tell me what happen? thanks a lot