I'm trying to make a custom lein task called migrate, so I can say on the command line:

```
lein migrate

```

lein finds my task file under src/leiningen/migrate.clj (as per the leiningen convention). In the ns declaration for the task I have a require for a file from my project

```
(ns leiningen.migrate
  (require [triface.migration :as mm]))

(defn migrate []
  (mm/run-migrations))

```

It finds src/triface/migration.clj fine, but THAT file requires a file that requires jdbc:

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

```

This call works fine in my application, but from this lein task it fails with the following error:

```
Exception in thread "main" java.io.FileNotFoundException: 
Could not locate clojure/java/jdbc__init.class or clojure/java/jdbc.clj on classpath

```

What is going on here? Thanks!