i have an app app1 which uses ExAws.Lambda.invoke/4. All is well and no compile warnings.

Another app say app2 uses app1 as a dependency. For some reason I get a compile warning: ExAws.Lambda.invoke/4 is undefined (module ExAws.Lambda is not available or is yet to be defined) lib/app2/client.ex:40: App2.Client.get_page/2.

Now in App1, i have aliased
alias ExAws.Lambda and calling the function as such:

 function_name
    |> Lambda.invoke(
      config,
      %{},
      invocation_type: :request_response
    )
    |> ex_aws.request()

The warning comes from app2 on a fresh compile but not on subsequent compiles even when forced using the --force option. I also have to remove _build and deps for the warning to show.