getting "Function not found" when invoking clojure with -X:alias

Question

I have two aliases in my deps.edn:

{
 :deps
 {
  org.clojure/spec.alpha {:mvn/version "0.2.194"}
  aleph/aleph {:mvn/version "0.4.7-alpha7"}
  hiccup/hiccup {:mvn/version "2.0.0-alpha2"}
  }

 :aliases 
 { 
  :web-server {
               :exec-fn web.network-service/run 
               :exec-args {:port 8080} 
               }
  :test-web-server { 
                    :exec-fn test.tnetwork-service/run 
                    :exec-args {:port 9090}
                    }
  }
 }

When invoking

clojure -X:web-server

I get

Function not found: web.network-service/run

Everything is honky dory when invoking

clojure -X:test-web-server

I don't see why would that be, the exec-funs are basically identical. Take a look at full code here: https://github.com/sidesteps/network-grid
I have :paths ["." "src"] in my global deps.edn

Answer 1

You have a typo in src/web/network_service.clj:

(ns web.netwok-service

There's an r missing so the namespace does not match the filename and cannot be required correctly.

Comments

thank you kindly for taking a look. That's embarrassing. Perhaps this should have been cough by something in clojure cli pipeline though?

---

If you try it in the REPL (which was how I debugged this), you require web.network-service and it finds a matching file so then it loads it and that leaves you with web.netwok-service as a defined namespace.

A requiring-resolve of web.network-service/run at that point will throw an exception -- and the CLI tells you that the function you requested does not exist.

I guess it could differentiate between nil and an exception at that point and provide a different error message in each case (nil means the ns loaded but the function does not resolve, an exception means the ns failed to load: it's missing or has syntax errors).

---

Differentiated for next release... https://github.com/clojure/brew-install/commit/f7d8d22a4c8a72f0d2bb69da8f014bac8cf5e7d3

---

Nice! Thank you, Alex!

---

lovely, thank you. Will regression test this on my typo when released. The fact that error message displays namespace should put the typo in mistypists' face.

Answer 2

What version of Clojure CLI (clojure --version)?

Did you try with -Sforce?

Comments

Clojure CLI version 1.10.3.933

Thanks to Sean Corfield, he spotted a typo in ns declaration in the file of exec-fn. We are thinking perhaps this could have been cought by clojure cli. Please take a look at Seans' suggestion in his comment.