Exception in thread "main" java.lang.Exception: Couldn't connect (NO_SOURCE_FILE:0)
        at clojure.lang.Compiler.eval(Compiler.java:5440)
        at clojure.lang.Compiler.eval(Compiler.java:5391)
        at clojure.core$eval.invoke(core.clj:2382)
        at clojure.main$eval_opt.invoke(main.clj:235)
        at clojure.main$initialize.invoke(main.clj:254)
        at clojure.main$script_opt.invoke(main.clj:270)
        at clojure.main$main.doInvoke(main.clj:354)
        at clojure.lang.RestFn.invoke(RestFn.java:458)
        at clojure.lang.Var.invoke(Var.java:377)
        at clojure.lang.AFn.applyToHelper(AFn.java:174)
        at clojure.lang.Var.applyTo(Var.java:482)
        at clojure.main.main(main.java:37)
Caused by: java.lang.Exception: Couldn't connect
        at leiningen.repl$poll_repl_connection.invoke(repl.clj:78)
        at leiningen.repl$poll_repl_connection.invoke(repl.clj:87)
        at leiningen.repl$repl.invoke(repl.clj:109)
        at clojure.lang.Var.invoke(Var.java:365)
        at clojure.lang.AFn.applyToHelper(AFn.java:163)
        at clojure.lang.Var.applyTo(Var.java:482)
        at clojure.core$apply.invoke(core.clj:542)
        at leiningen.core$apply_task.invoke(core.clj:186)
        at leiningen.core$_main.doInvoke(core.clj:245)
        at clojure.lang.RestFn.applyTo(RestFn.java:138)
        at clojure.core$apply.invoke(core.clj:540)
        at leiningen.core$_main.invoke(core.clj:250)
        at user$eval171.invoke(NO_SOURCE_FILE:1)
        at clojure.lang.Compiler.eval(Compiler.java:5424)
        ... 11 more
REPL started; server listening on localhost:30786.