使用clojure命令行工具lein repl时一直提示连接被拒绝问题解决

Exception in thread "main" java.net.ConnectException: Connection refused, compiling:(/private/var/folders/bb/zf1x_jpd40z8h63gb_1d29z40000gn/T/form-init8378651188484516853.clj:1:125)
at clojure.lang.Compiler.load(Compiler.java:7391)
at clojure.lang.Compiler.loadFile(Compiler.java:7317)
at clojure.main$load_script.invokeStatic(main.clj:275)
at clojure.main$init_opt.invokeStatic(main.clj:277)
at clojure.main$init_opt.invoke(main.clj:277)
at clojure.main$initialize.invokeStatic(main.clj:308)
at clojure.main$null_opt.invokeStatic(main.clj:342)
at clojure.main$null_opt.invoke(main.clj:339)
at clojure.main$main.invokeStatic(main.clj:421)
at clojure.main$main.doInvoke(main.clj:384)
at clojure.lang.RestFn.invoke(RestFn.java:421)
at clojure.lang.Var.invoke(Var.java:383)
at clojure.lang.AFn.applyToHelper(AFn.java:156)
at clojure.lang.Var.applyTo(Var.java:700)
at clojure.main.main(main.java:37)
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocket

# SwitchHosts!
Impl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at java.net.Socket.<init>(Socket.java:434)
at java.net.Socket.<init>(Socket.java:211)
at clojure.tools.nrepl$connect.invokeStatic(nrepl.clj:184)
at clojure.tools.nrepl$connect.doInvoke(nrepl.clj:174)
at clojure.lang.RestFn.invoke(RestFn.java:421)
at clojure.tools.nrepl.ack$send_ack.invokeStatic(ack.clj:47)
at clojure.tools.nrepl.ack$send_ack.invoke(ack.clj:45)
at clojure.tools.nrepl.server$start_server.invokeStatic(server.clj:157)
at clojure.tools.nrepl.server$start_server.doInvoke(server.clj:121)
at clojure.lang.RestFn.invoke(RestFn.java:619)
at user$eval1149.invokeStatic(form-init8378651188484516853.clj:1)
at user$eval1149.invoke(form-init8378651188484516853.clj:1)
at clojure.lang.Compiler.eval(Compiler.java:6927)
at clojure.lang.Compiler.eval(Compiler.java:6917)
at clojure.lang.Compiler.eval(Compiler.java:6917)
at clojure.lang.Compiler.load(Compiler.java:7379)
... 14 more

vim /etc/hosts

127.0.0.1 localhost