leiningen - Clojure: lein task cannot find jdbc, even though application can find it fine -

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i'm trying make custom lein task called migrate, can on command line:

lein migrate

lein finds task file under src/leiningen/migrate.clj (as per leiningen convention). in ns declaration task have require file project

(ns leiningen.migrate   (require [triface.migration :as mm]))  (defn migrate []   (mm/run-migrations))

it finds src/triface/migration.clj fine, file requires file requires jdbc:

(ns triface.db   (:require [clojure.java.jdbc :as sql]))

this call works fine in application, lein task fails following error:

exception in thread "main" java.io.filenotfoundexception:  not locate clojure/java/jdbc__init.class or clojure/java/jdbc.clj on classpath

what going on here? thanks!

the classpath different. use is, must define :dev-dependencies in project.clj file.

for example, 

:dev-dependencies [[org.clojure/java.jdbc "0.0.4"] ]

then, jar file loaded properly. 

(ns triface.migration   (:require [clojure.java.jdbc :as sql]))   (defn run-migrations[]    "hello")

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