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JonyEpsilon / gorilla-repl

A rich REPL for Clojure in the notebook style.
http://gorilla-repl.org
MIT License
887 stars 104 forks source link

Error running list-plot #265

Closed jsgrahamus closed 7 years ago

jsgrahamus commented 7 years ago

On Ubuntu 16.10 (?) x64, following tutorial, got an error when trying to run it:

(list-plot (1 2 3 4 5))

Exception thrown: java.lang.ClassCastException (java.lang.Long cannot be cast to clojure.lang.IFn) eval9950 - calm-dawn - (form-init8927565946900784424.clj:1) eval9950 - calm-dawn - (form-init8927565946900784424.clj:1) eval - (Compiler.java:6927) eval - (Compiler.java:6890) eval - clojure.core - (core.clj:3105) eval - clojure.core - (core.clj:3101)

steve@steve-Satellite-L555D:~/foo$ ls CHANGELOG.md doc LICENSE project.clj README.md src target test steve@steve-Satellite-L555D:~/foo$ cat project.clj (defproject foo "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 "1.8.0"]] :plugins [[org.clojars.benfb/lein-gorilla "0.4.0"]] :main ^:skip-aot foo.core :target-path "target/%s" :profiles {:uberjar {:aot :all}}) steve@steve-Satellite-L555D:~/foo$

JonyEpsilon commented 7 years ago

It looks like you're accidentally calling 1 as a function. Either of:

(list-plot [1 2 3 4 5])

(list-plot '(1 2 3 4 5))

should work. When you get an "xxx cannot be cast to clojure.lang.IFn" error in clojure it's almost always a sign that you've accidentally got something inappropriate at the front of a function call form.