Lane server with nrepl does not comply with cider-nrepl

Question

When I start my current project using lein ring server and try to connect to it from Emacs via cider, I get the following warning:

 ; CIDER 0.8.2 (Java 1.7.0_51, Clojure 1.6.0, nREPL 0.2.6) WARNING: The following required nREPL ops are not supported: apropos classpath complete eldoc info inspect-start inspect-refresh inspect-pop inspect-push inspect-reset macroexpand ns-list ns-vars resource stacktrace toggle-trace-var toggle-trace-ns undef Please, install (or update) cider-nrepl 0.8.2 and restart CIDER user> 

However, I have a dependency for [cider/cider-nrepl "0.8.2"] in my project.clj . This works fine when I run lein repl and to which I can connect only differently from cider:

 ; CIDER 0.8.2 (Java 1.7.0_51, Clojure 1.6.0, nREPL 0.2.6) swedishchef.handler> 

I see that I am getting two different messages from leiningen wrt. nREPL, depending on how I start:

 [sugarcube->swedishchef]lein ring server See https://github.com/technomancy/leiningen/wiki/Repeatability) Started nREPL server on port 44231 

This is the result of working with the cider-nrepl connection:

 [sugarcube->swedishchef]lein repl See https://github.com/technomancy/leiningen/wiki/Repeatability) nREPL server started on port 38024 on host 127.0.0.1 - nrepl://127.0.0.1:38024 REPL-y 0.3.5, nREPL 0.2.6 

Looking at the output of lein deps :tree , I don't see any problems. So my first question is whether this should work, i.e. If cider-nrepl should override lein ring wrt behavior. to launch nrepl? If so, can someone give some tips for further troubleshooting?

Answer 1

Use the latest lein-ring plugin version 0.9.2 and add :nrepl-middleware containing the nrepl-middlewares vector to :repl-options in your .clj project

For example, I create a lein new compojure-app my-app project lein new compojure-app my-app . Then I checked it by creating an empty leiningen profile in ~/.lein/profiles.clj ex. {:yolo {}} and the outgoing call server to lein with-profile yolo,dev ring server .

 (defproject my-app "0.1.0-SNAPSHOT" :description "FIXME: write description" :url "http://example.com/FIXME" :dependencies [[org.clojure/clojure "1.6.0"] [compojure "1.1.6"] [hiccup "1.0.5"] [ring-server "0.3.1"] [cider/cider-nrepl "0.8.2"]] :plugins [[lein-ring "0.9.2"]] :ring {:handler my-app.handler/app :init my-app.handler/init :destroy my-app.handler/destroy :nrepl {:start? true}} :repl-options {:nrepl-middleware [cider.nrepl.middleware.apropos/wrap-apropos cider.nrepl.middleware.classpath/wrap-classpath cider.nrepl.middleware.complete/wrap-complete cider.nrepl.middleware.info/wrap-info cider.nrepl.middleware.inspect/wrap-inspect cider.nrepl.middleware.macroexpand/wrap-macroexpand cider.nrepl.middleware.ns/wrap-ns cider.nrepl.middleware.resource/wrap-resource cider.nrepl.middleware.stacktrace/wrap-stacktrace cider.nrepl.middleware.test/wrap-test cider.nrepl.middleware.trace/wrap-trace cider.nrepl.middleware.undef/wrap-undef]} :profiles {:uberjar {:aot :all} :production {:ring {:open-browser? false, :stacktraces? false, :auto-reload? false}} :dev {:dependencies [[ring-mock "0.1.5"] [ring/ring-devel "1.3.1"]]}})