Debugger entered--Lisp error: (error "Could not start swank server: bash: lein: command not found
")
  signal(error ("Could not start swank server: bash: lein: command not found\n"))
  error("Could not start swank server: %s" "bash: lein: command not found\n")
  (let ((debug-on-error t)) (error "Could not start swank server: %s" (with-current-buffer (process-buffer process) (buffer-substring (point-min) (point-max)))))
  clojure-jack-in-sentinel(#<process swank> "exited abnormally with code 127\n")

ELISP> exec-path
("/home/brett/bin" "/usr/local/bin" "/usr/bin" "/bin" "/usr/local/sbin" "/usr/sbin" "/sbin" "/usr/bin/vendor_perl" "/usr/bin/core_perl" "/usr/lib/emacs/24.0.92/x86_64-unknown-linux-gnu")

ELISP> (getenv "PATH")
"/home/brett/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/usr/bin/vendor_perl:/usr/bin/core_perl"

ELISP> (locate-file "lein" exec-path)
"/home/brett/bin/lein"

$ lein version
Leiningen 1.6.2 on Java 1.7.0_147-icedtea OpenJDK 64-Bit Server VM