I have the following directory structure:

ANN/
    ANN/mathkit/
        ANN/mathkit/package.d
    ANN/utils/
        ANN/utils/package.d
    ANN/MLP.d

I have the following in "ANN/mathkit/package.d":

module ANN.mathkit;
//...
/// Local Imports ///
import ANN.utils;
//...

I have the following in "ANN/MLP.d":

import mathkit;
//...
void main(){ /* ... */ }

When I
rdmd MLP.d

I get the following error:

mathkit/package.d(7): Error: unable to read module `utils`
mathkit/package.d(7):        Expected 'ANN/utils.d' or 'ANN/utils/package.d' in one of the following import paths: // ...

How do I build my project with these dependencies?:

utils --> mathkit --> MLP
    \                 ,^
     `---------------'

Must I choose a different structure?
Should I be using DUB?

I think you need to do:

rdmd MLP.d -I ANN/

Basically you need to tell the compiler where your imported packages are

On Tuesday, 14 February 2023 at 17:56:39 UTC, ryuukk_ wrote:

rdmd MLP.d -I ANN/

This did the trick. I did not need it when utils was the only local import, but I suppose the compiler needs a little more help when sibling packages depend on each other.

Glad it worked!

I wonder why DMD doesn't just parse the import and follow its path since module name must correspond to its path

Does anyone know?