Re: [clojure-mongodb] java.lang.NoSuchMethodError: clojure.lang.RT.mapUniqueKeys([Ljava/lang/Object;)

[Michael Klishin]

2013/4/19 Zhi Yang <zhi....@yottaa.com>

Exception in thread "main" java.lang.NoSuchMethodError: clojure.lang.RT.mapUniqueKeys([Ljava/lang/Object;)Lclojure/lang/IPersistentMap;, compiling:(core.clj:10)

This means you have code compiled against Clojure 1.4 or later and you are running 1.3.

lein clean should clear such artifacts (e.g. protocols and gen-class-generated .class files) but the real issue is that something

is probably dragging Clojure 1.3 onto the classpath.

lein deps :tree will show you dependency tree. The only thing I can tell is that Noir has been deprecated months ago and was never

updated to 1.4 to the best of my knowledge. Use Luminus, Compojure or Pedestal and Clojure 1.5.1.

Monger still supports Clojure 1.3 but it does use protocols internally so if you've just added any new dependencies, you may have

1.4+ .class files generated for them.

--
MK

http://github.com/michaelklishin
http://twitter.com/michaelklishin