ClassNotFoundException with imported Interface

gistfile1.txt

We start with an interface specification, a snippet of which is this

(ns ie4clj.api)

(definterface Inferrable
  
  (^boolean eval [])
   (^boolean evalMembers [members])
  )
  
We then use that interface in a test, a snippet of which is this
(ns ie4clj.Tests
  (:require
    [ie4clj.AndList]
    [ie4clj.OrList]
    [ie4clj.Not])
  (:import (ie4clj.api Inferrable)))

(defn SimpleTrue
  (reify
    Inferrable              <<<<<<<
    (defn eval []  true)))
    
When that use had problems, the inteliij IDE added the import statement, so I assume that's how to use it
Now, in another file, a snippet of which is this:

(ns ie4clj.AndList
  (:import (ie4clj.api Inferrable))
  )

(defn AndList
       (reify
         Inferrable
         (defn evalMembers [members]

I see the error message
Syntax error (ClassNotFoundException) compiling at (ie4clj/AndList.clj:1:1).
ie4clj.api.Inferrable

A question is this: why does the import work in the test file but not in the AndList file?