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#leiningen
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2018-06-05
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rnagpal14:06:38

When I say lein repl in my project I get this exception

rnagpal14:06:42

nREPL server started on port 49682 on host 127.0.0.1 - 
Jun 05, 2018 10:10:56 AM clojure.tools.nrepl.server invoke
SEVERE: Unhandled REPL handler exception processing message {:id 6a71bda2-4c55-4fae-9ca9-b3718470fdcf, :op clone}
java.lang.IllegalStateException: Can't dynamically bind non-dynamic var: clojure.core/*print-namespace-maps*
        at clojure.lang.Var.pushThreadBindings(Var.java:320)
        at clojure.core$push_thread_bindings.invokeStatic(core.clj:1837)
        at clojure.core$push_thread_bindings.invoke(core.clj:1821)
        at clojure.tools.nrepl.middleware.session$create_session.invokeStatic(session.clj:116)
        at clojure.tools.nrepl.middleware.session$create_session.invoke(session.clj:108)

rnagpal14:06:53

any idea what could be causing it ?

Alex Miller (Clojure team)15:06:59

are you using Clojure < 1.9?

danielcompton20:06:38

@rnagpal can you share your project.clj?