could not find prelude in heron

[Eldolfin]

I'm getting this error using heron v4.0.0-alpha.4 with bevy 0.8.0:
I'm stuck

error[E0432]: unresolved import `heron::prelude`
 --> src/main.rs:4:12
  |
4 | use heron::prelude::*;
  |            ^^^^^^^ could not find `prelude` in `heron`

[jcornaz]

Make sure to add either features = ["2d"] or features = ["3d"] in the dependency declaration. Example:

heron = { version = "=4.0.0-alpha.4", features = ["3d"] }

I am aware that it is not super intuitive. #249 aims to improve the situation.

[Eldolfin]

Thanks