Debugger entered--Lisp error: (wrong-number-of-arguments ((t) (prompt callback) "Read a symbol name using PROMPT with a default of the one at point.
Use CALLBACK as the completing read var callback." (funcall callback (cider-read-from-minibuffer prompt (cider--kw-to-symbol (cider-symbol-at-point (quote look-back)))))) 3)
  cider-read-symbol-name("Symbol: " cider-doc-lookup nil)
  cider-doc(nil)
  call-interactively(cider-doc record nil)
  command-execute(cider-doc record)
  execute-extended-command(nil "cider-doc")
  call-interactively(execute-extended-command nil nil)
  command-execute(execute-extended-command)