Is it possible to nest barrels?

More specifically: Is it possible to configure a barrel from within another barrel?

From a procedural point of view, this seems to be possible: If I have two barrels, OuterBarrel and InnerBarrel, VS Code lets me create a reference from OuterBarrel to the InnerBarrel project, that is, to the InnerBarrel's monkey.jungle file. And then the OuterBarrel's barrels.jungle file contains these lines:

InnerBarrel = [<some-path>\InnerBarrel\monkey.jungle]
base.barrelPath = $(base.barrelPath);$(InnerBarrel)

However, whenever I try to use code in InnerBarrel from OuterBarrel, I get a plethora of vague error messages. For example, InnerBarrel.mc looks like this:

import Toybox.Lang;
import Toybox.System;

module InnerBarrel {

    class InnerClass {

        public function returnSomething() as String {
            return "something";
        }
    }

    public function printInner() {
        Toybox.System.println("Inner barrel");
    }
}

And OuterBarrel.mc has this code:

import InnerBarrel;
import Toybox.System;

module OuterBarrel {

    var innerVar as InnerClass;
    var anotherInnerVar as InnerBarrel.InnerClass;

    public function printOuter() {
        System.println("Outer barrel");
        printInner();
        InnerBarrel.printInner();
        var local = innerVar.returnSomething();
    }

}

In the above code, a lot of statements give an error message about not being able to find InnerBarrel:

• var innerVar as InnerClass; (where, interestingly, the statement var anotherInnerVar as InnerBarrel.InnerClass; does not give an error message)
• printInner();
• InnerBarrel.printInner();
• var local = innerVar.returnSomething();

All of this seems to suggest that it is not possible to configure a barrel from within another barrel (even though the Configure Barrel command lets you do it). Or am I missing something trivial here?