@zachdaniel hello,
I have the same error on a custom mix task installed with mix archive.install. If the task calls other modules after I asked Mix to load a project or ran “app.config”, then the code of all modules from my mix task cannot be found.
I guess Mix completely redefines the loadable ebin paths. There is a workaround where I can just force load the modules of my task by calling .module_info() on them but it’s a hack.
It seems that you found a solution for this problem. Did you run into the same problem or was it something else? If yes, can you tell me how it is solved in Igniter when installed globally as an archive?
Thank you 
