Angular.Dart and the Root Controller/Component - dart

Question

I have an Angular.Dart program and want to add some Angular functionality to the main program (outside of any components). I've been reading about how to accomplish this, and it seems that you have to use the .rootContextType property to accomplish this.
This is my main() function before I tried anything, and it's working fine:
main() {
applicationFactory()
.addModule(new MainInitModule())
.run();
}
Next, I defined an empty class (to be my Root Controller) as follows:
#Injectable()
class RootController {
}
And I modified my main() function as follows:
main() {
applicationFactory()
.rootContextType(RootController)
.addModule(new MainInitModule())
.run();
}
Trying to run this produce the following error messages / stack traces:
Missing getter: (o) => o.openAction
STACKTRACE:
#0 StaticFieldGetterFactory.getter (package:angular/change_detection/dirty_checking_change_detector_static.dart:12:25)
#1 DirtyCheckingRecord.object= (package:angular/change_detection/dirty_checking_change_detector.dart:545:43)
#2 _FieldHandler.acceptValue (package:angular/change_detection/watch_group.dart:631:17)
#3 WatchGroup.addFieldWatch (package:angular/change_detection/watch_group.dart:167:29)
#4 FieldReadAST.setupWatch (package:angular/change_detection/ast.dart:68:31)
#5 WatchGroup.addCollectionWatch (package:angular/change_detection/watch_group.dart:176:49)
#6 CollectionAST.setupWatch (package:angular/change_detection/ast.dart:139:36)
#7 WatchGroup._addEvalWatch (package:angular/change_detection/watch_group.dart:235:52)
#8 WatchGroup.addFunctionWatch (package:angular/change_detection/watch_group.dart:199:20)
#9 PureFunctionAST.setupWatch (package:angular/change_detection/ast.dart:88:34)
#10 WatchGroup.watch (package:angular/change_detection/watch_group.dart:141:62)
#11 Scope.watchAST (package:angular/core/scope.dart:271:23)
#12 AttrMustache.AttrMustache.<anonymous closure> (package:angular/core_dom/mustache.dart:38:32)
#13 NodeAttrs.listenObserverChanges (package:angular/core_dom/directive.dart:79:13)
#14 AttrMustache.AttrMustache (package:angular/core_dom/mustache.dart:34:33)
#15 ElementBinder._createDirectiveFactories (package:angular/core_dom/element_binder.dart:259:11)
#16 ElementBinder.bind (package:angular/core_dom/element_binder.dart:294:32)
#17 ViewFactory._bindTagged (package:angular/core_dom/view_factory.dart:79:36)
#18 ViewFactory._link (package:angular/core_dom/view_factory.dart:119:24)
#19 ViewFactory.call (package:angular/core_dom/view_factory.dart:58:10)
#20 Application.run.<anonymous closure>.<anonymous closure> (package:angular/application.dart:186:24)
#21 _rootRunUnary (dart:async/zone.dart:902)
#22 _ZoneDelegate.runUnary (dart:async/zone.dart:508)
#23 _onRunUnary.<anonymous closure> (package:angular/core/zone.dart:122:63)
#24 VmTurnZone._onRunBase (package:angular/core/zone.dart:104:16)
#25 _onRunUnary (package:angular/core/zone.dart:122:17)
#26 _CustomZone.runUnary (dart:async/zone.dart:804)
#27 _Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:484)
#28 _Future._propagateToListeners (dart:async/future_impl.dart:567)
#29 _Future._completeWithValue (dart:async/future_impl.dart:358)
#30 _Future._asyncComplete.<anonymous closure> (dart:async/future_impl.dart:412)
#31 _rootRun (dart:async/zone.dart:895)
#32 _ZoneDelegate.run (dart:async/zone.dart:501)
#33 _onScheduleMicrotask.<anonymous closure> (package:angular/core/zone.dart:127:45)
#34 VmTurnZone._finishTurn (package:angular/core/zone.dart:166:34)
#35 VmTurnZone._onRunBase (package:angular/core/zone.dart:111:43)
#36 _onRun (package:angular/core/zone.dart:118:17)
#37 _CustomZone.run (dart:async/zone.dart:796)
#38 VmTurnZone.run (package:angular/core/zone.dart:257:40)
#39 Application.run (package:angular/application.dart:174:22)
#40 main (http://localhost:8080/datacea.dart:157:11)
#41 main (http://localhost:8080/datacea.html_bootstrap.dart:93:11)
The null object does not have a method 'call'.
NoSuchMethodError: method not found: 'call'
Receiver: null
Arguments: [Instance of 'RootController']
STACKTRACE:
#0 Object.noSuchMethod (dart:core-patch/object_patch.dart:45)
#1 DirtyCheckingRecord.check (package:angular/change_detection/dirty_checking_change_detector.dart:569:26)
#2 DirtyCheckingChangeDetector.collectChanges (package:angular/change_detection/dirty_checking_change_detector.dart:353:26)
#3 RootWatchGroup.detectChanges (package:angular/change_detection/watch_group.dart:398:69)
#4 RootScope.flush (package:angular/core/scope.dart:860:38)
#5 Scope.apply (package:angular/core/scope.dart:317:23)
#6 RootScope.RootScope.<anonymous closure> (package:angular/core/scope.dart:768:12)
#7 _rootRun (dart:async/zone.dart:895)
#8 _ZoneDelegate.run (dart:async/zone.dart:501)
#9 VmTurnZone._finishTurn (package:angular/core/zone.dart:168:21)
#10 VmTurnZone._onRunBase (package:angular/core/zone.dart:111:43)
#11 _onRun (package:angular/core/zone.dart:118:17)
#12 _CustomZone.run (dart:async/zone.dart:796)
#13 VmTurnZone.run (package:angular/core/zone.dart:257:40)
#14 Application.run (package:angular/application.dart:174:22)
#15 main (http://localhost:8080/datacea.dart:157:11)
#16 main (http://localhost:8080/datacea.html_bootstrap.dart:93:11)
The null object does not have a method 'call'.
NoSuchMethodError: method not found: 'call'
Receiver: null
Arguments: [Instance of 'RootController']
STACKTRACE:
#0 Object.noSuchMethod (dart:core-patch/object_patch.dart:45)
#1 DirtyCheckingRecord.check (package:angular/change_detection/dirty_checking_change_detector.dart:569:26)
#2 DirtyCheckingChangeDetector.collectChanges (package:angular/change_detection/dirty_checking_change_detector.dart:353:26)
#3 RootWatchGroup.detectChanges (package:angular/change_detection/watch_group.dart:398:69)
#4 RootScope.flush.<anonymous closure> (package:angular/core/scope.dart:884:57)
#5 RootScope.flush (package:angular/core/scope.dart:896:9)
#6 Scope.apply (package:angular/core/scope.dart:317:23)
#7 RootScope.RootScope.<anonymous closure> (package:angular/core/scope.dart:768:12)
#8 _rootRun (dart:async/zone.dart:895)
#9 _ZoneDelegate.run (dart:async/zone.dart:501)
#10 VmTurnZone._finishTurn (package:angular/core/zone.dart:168:21)
#11 VmTurnZone._onRunBase (package:angular/core/zone.dart:111:43)
#12 _onRun (package:angular/core/zone.dart:118:17)
#13 _CustomZone.run (dart:async/zone.dart:796)
#14 VmTurnZone.run (package:angular/core/zone.dart:257:40)
#15 Application.run (package:angular/application.dart:174:22)
#16 main (http://localhost:8080/datacea.dart:157:11)
#17 main (http://localhost:8080/datacea.html_bootstrap.dart:93:11)
Exception: The null object does not have a method 'call'.
NoSuchMethodError: method not found: 'call'
Receiver: null
Arguments: [Instance of 'RootController'] (package:angular/change_detection/dirty_checking_change_detector.dart:569)
I've been racking my brain over how to resolve this for three days now with no success. Can anyone assist?