If you use rebar and specify dependencies, IDEA will open a popup saying "Unregistered VCS roots detected", listing all the rebar deps below the "deps" directory.
The Erlang plugin should (if possible) tell IDEA not to look below "deps" for VCS roots.
Desired behaviour: Knowing that the project is a Rebar project, dependencies inside _build could be added and removed automatically. The user usually does not want to manage those.
If you use rebar and specify dependencies, IDEA will open a popup saying "Unregistered VCS roots detected", listing all the rebar deps below the "deps" directory.
The Erlang plugin should (if possible) tell IDEA not to look below "deps" for VCS roots.