cider-nrepl error when running project

Question

I try running lein project with cider/cider-nrepl.

I write [cider/cider-nrepl "0.10.1"] in plugins section of project.clj

After running cider-jack-in i have error - Caused by: java.lang.RuntimeException: Unable to resolve var: cider.nrepl.middleware.apropos/wrap-apropos in this context

If i remove cider plugin from project.clj Cider run fine, but M-., cider-jump-to-var function not work.

update

i created new minimal lein app:

$lein deps :tree

[clojure-complete "0.2.3" :scope "test" :exclusions   [[org.clojure/clojure]]]
 [org.clojure/clojure "1.6.0"]
 [org.clojure/tools.nrepl "0.2.6" :scope "test" :exclusions [[org.clojure/clojure]]]

project.clj

(defproject app "0.1.0-SNAPSHOT"
  :description "FIXME: write description"
  :url "http://example.com/FIXME"
  :license {:name "Eclipse Public License"
            :url "http://www.eclipse.org/legal/epl-v10.html"}
  :dependencies [[org.clojure/clojure "1.6.0"]])

$lein version

Leiningen 2.5.1 on Java 1.8.0_72-internal OpenJDK Server VM

i have a custom profile.clj for lein.

{:repl {:dependencies [[org.clojure/tools.nrepl "0.2.12"]]}}

Answer 1

Problems like this are often caused by different dependencies, either plugin or otherwise, requiring different versions of the same library. The best way to sort it out is to run:

lein deps :tree

and look at all the lines that suggest exclusions. There is a good chance that it's printing a warning about multiple dependencies resolving different versions of nrepl or one of it's dependencies. If that does not lead to an obvious conflict then try, making a blank project with lein new app and then get cider working there, in isolation, before moving it back into your main project.