The null object does not have a getter 'isChecks'.

[pinnisi]

OS: Windows 8.1 64bit
SDK: 1.13.2 (64 bit)

Working dir: C:\Users\Andrea\WebstormProjects\prjtest-dart
C:\devel\dart-sdk\bin\pub.bat build --mode=debug
Loading source assets...
Loading dart_to_js_script_rewriter transformers...
Building prjtest...
[Info from Dart2JS]:
Compiling prjtest|web/main.dart...
The compiler is broken.
[Error from Dart2JS]:

web\main.dart:
When compiling the above element, the compiler crashed. It is not
The compiler crashed when compiling this element.
possible to tell if this is caused by a problem in your program or
not. Regardless, the compiler should not crash.

The Dart team would greatly appreciate if you would take a moment to
report this problem at http://dartbug.com/new.

Please include the following information:

• the name and version of your operating system,
• the Dart SDK build number (build number could not be determined), and
• the entire message you see here (including the full stack trace
  below as well as the source location above).

Build error:
Transform Dart2JS on prjtest|web/main.dart threw error: The null object does not have a getter 'isChecks'.

NoSuchMethodError: method not found: 'isChecks'
Receiver: null
Arguments: []
dart:core Object.noSuchMethod
package:compiler_unsupported/src/js_emitter/program_builder/program_builder.dart 627 ProgramBuilder._buildClass.
dart:collection _HashVMBase&MapMixin&&_LinkedHashMapMixin.forEach
package:compiler_unsupported/src/js_emitter/program_builder/program_builder.dart 626 ProgramBuilder._buildClass
dart:core List.forEach
package:compiler_unsupported/src/js_emitter/program_builder/program_builder.dart 144 ProgramBuilder.buildProgram.
dart:collection _HashVMBase&MapMixin&&_LinkedHashMapMixin.forEach
package:compiler_unsupported/src/js_emitter/program_builder/program_builder.dart 143 ProgramBuilder.buildProgram
package:compiler_unsupported/src/js_emitter/full_emitter/emitter.dart 1774 Emitter.emitProgram
package:compiler_unsupported/src/js_emitter/code_emitter_task.dart 146 CodeEmitterTask.assembleProgram.
package:compiler_unsupported/src/common/tasks.dart 55 CompilerTask.measure
package:compiler_unsupported/src/js_emitter/code_emitter_task.dart 140 CodeEmitterTask.assembleProgram
package:compiler_unsupported/src/js_backend/backend.dart 1623 JavaScriptBackend.assembleProgram
package:compiler_unsupported/src/compiler.dart 1054 Compiler.compileLoadedLibraries
package:compiler_unsupported/src/compiler.dart 871 Compiler.runCompiler.
Build failed.
Process finished with exit code 65