Angular-dart: "target of URI..." - eclipse

Question

I searched high and low for this issue and, while I found reports of the same error ubiquitously, I didn't find this specific error and can't seem to resolve it. I'm just now learning Dart and am following the Angular-Dart tutorial, and I keep getting this error early on, with no explanation that I can find. This is my badge_controller file:
library s1_basics.badge_controller;
import 'package:angular/angular.dart';
#NgController(
selector: '[badge-controller]',
publishAs: 'ctrl'
)
class BadgeController {
static const DEFAULT_NAME = 'Anne Bonney';
static const LABEL1 = 'Arrr! Write yer name!';
static const LABEL2 = 'Aye! Gimme a name!';
String name = '';
bool get inputIsNotEmpty => name.trim().isNotEmpty;
String get label => inputIsNotEmpty ? LABEL1 : LABEL2;
generateName() {
name = DEFAULT_NAME;
}
}
And this is my pirate_module file:
library s1_basics.pirate_module;
import 'package:angular/angular.dart';
import 'package:s1_basics/badge_controller.dart';
class PirateModule extends Module {
PirateModule() {
type(BadgeController);
}
}
I'm so early on in this tutorial that I don't think there's much else that I can show to debug this, but if anyone has an idea, I'd greatly appreciate it. Cheers!

Answer 1

Changing the import paths to be relative references for the imported files seems to fix it; i.e. initially this gave errors:
import 'package:s1_basics/pirate_module.dart';
but after changing it to
import '../lib/pirate_module.dart';
it worked...so that's the fix (for this) if anyone out there has issues.