"Attempting to reduce pending async count below zero." error in angular-dart -

Since I'm in angularDart v1 this error is taking place

minimizing async Try to count down below zero.

  STACKTRACE: # 0 pending ASINC.com Serrate (package: angular / core / pending_acnidid: 48: 7) # 1 pending order. DecreaseCount (Package: Angular / Core / Pending_assigned Dart: 59: 54) Rootscope # 2. Rootscope. & Lt; Anonymous Closed & gt; (Package: Angular / Core / Scope Dart: 769: 34) # 3 _rootRun (Dart: ASCink / Zone Diet: 892) # 4 _ZoneDelegate.run (Dart: Async / Zone Diet: 49 9) # 5 Vmitternzone.finnishtern ( Package: angular / core / zone diert: 168: 21) # 6 VmTarnzone.Onbunbase (Package: Connular / Core / Zone Deert: 111: 43) # 7 _Onununary (Package: angular / core / zone diart: 122: 17) # 8 _CustomZone.runUnary (Dart: Async / Zone Diet: 801) # 9 _CustomZone.RunUnaryGuarded (Dart: Async / Zone Diet: 709) # 10 _CustomZone.bindUnaryCallback & Lt; Anonymous Closed & gt; (Dart: Async / Zone Diet: 735)  

I really do not know where it comes from, if someone can help me in this matter.

Actually the code is past because it is very heavy and slightly sorry sorry. I hope someone will be able to help me