aaron-price
I am writing a library to be used in other elixir apps.
Suppose I have a module that needs to use something from another lib. In my example I am using Keathley’s Norm
defmodule MyLib.Something do
use Norm
...
end
Well in tests everything looks fine, but when I try to use my library from a demo app, I get an error:
error: module Norm is not loaded and could not be found
Ok fair enough. But how am I supposed to do it?
Even if I install norm on both the app and the library, I get that error. Could you please explain to me on a conceptual level why that would be?
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al2o3cr
Can you explain what specifically you mean by “install” here?
Typically I’d expect
mylibto declare a dependency onnorm, so addingmylibto the application should install it as well.arcyfelix
I think this resource will help you:
It provides an explanation for aliasing, requiring, imports etc.
aaron-price
Ya that was my thinking as well! But apparently not…
By install, I mean going to mylib’s mix.ex, adding norm to the deps, running
mix deps.getIt works fine in isolation, whether running tests in mylib, or opening IEX in mylib. So I know it does exist.
However, as soon as I depend on mylib from some phoenix application, and try to compile the phoenix app, it says norm doesn’t exist.
Even if I then add norm to the phoenix app AND to mylib. Still doesn’t exist. I am baffled.
aaron-price
Figured it out. I was running
mix deps.compilebut it needed the--forceflag. Not positive why. Don’t even care.