No cabal file in '.' when styx.yaml is not in same location with cabal

[Truong Hoang Dung]

I created the project structure like this:

- styx.yaml
- apps
- deps

My styx.yaml is

local-packages:
  helloworld:
    location: apps/helloworld
  katip-helpers:
    location: deps/katip-helpers

When i run styx build, i got error

cabal: Error reading local package.
Couldn't find .cabal file in: .