error_handler.js:50EXCEPTION: Cannot set property 'stack' of undefined
ErrorHandler.handleError @ error_handler.js:50
(anonymous) @ application_ref.js:259
ZoneDelegate.invoke @ zone.js:242
onInvoke @ ng_zone.js:269
ZoneDelegate.invoke @ zone.js:241
Zone.run @ zone.js:113
(anonymous) @ zone.js:535
ZoneDelegate.invokeTask @ zone.js:275
onInvokeTask @ ng_zone.js:260
ZoneDelegate.invokeTask @ zone.js:274
Zone.runTask @ zone.js:151
drainMicroTaskQueue @ zone.js:433
error_handler.js:55ORIGINAL STACKTRACE:
ErrorHandler.handleError @ error_handler.js:55
(anonymous) @ application_ref.js:259
ZoneDelegate.invoke @ zone.js:242
onInvoke @ ng_zone.js:269
ZoneDelegate.invoke @ zone.js:241
Zone.run @ zone.js:113
(anonymous) @ zone.js:535
ZoneDelegate.invokeTask @ zone.js:275
onInvokeTask @ ng_zone.js:260
ZoneDelegate.invokeTask @ zone.js:274
Zone.runTask @ zone.js:151
drainMicroTaskQueue @ zone.js:433
error_handler.js:56TypeError: Cannot set property 'stack' of undefined
    at NoProviderError.set [as stack] (errors.js:64)
    at assignAll (zone.js:704)
    at NoProviderError.ZoneAwareError (zone.js:775)
    at NoProviderError.BaseError [as constructor] (errors.js:26)
    at NoProviderError.AbstractProviderError [as constructor] (reflective_errors.js:53)
    at new NoProviderError (reflective_errors.js:102)
    at ReflectiveInjector_._throwOrNull (reflective_injector.js:994)
    at ReflectiveInjector_._getByKeyDefault (reflective_injector.js:1031)
    at ReflectiveInjector_._getByKey (reflective_injector.js:981)
    at ReflectiveInjector_.get (reflective_injector.js:743)
    at AppModuleInjector.NgModuleInjector.get (ng_module_factory.js:149)
    at CompiledTemplate.proxyViewClass.AppView.injectorGet (view.js:152)
    at CompiledTemplate.proxyViewClass.DebugAppView.injectorGet (view.js:580)
    at CompiledTemplate.proxyViewClass.View_AppComponent_Host0.createInternal (host.ngfactory.js:15)
    at CompiledTemplate.proxyViewClass.AppView.createHostView (view.js:108)
ErrorHandler.handleError @ error_handler.js:56
(anonymous) @ application_ref.js:259
ZoneDelegate.invoke @ zone.js:242
onInvoke @ ng_zone.js:269
ZoneDelegate.invoke @ zone.js:241
Zone.run @ zone.js:113
(anonymous) @ zone.js:535
ZoneDelegate.invokeTask @ zone.js:275
onInvokeTask @ ng_zone.js:260
ZoneDelegate.invokeTask @ zone.js:274
Zone.runTask @ zone.js:151
drainMicroTaskQueue @ zone.js:433
zone.js:420Unhandled Promise rejection: Cannot set property 'stack' of undefined ; Zone: <root> ; Task: Promise.then ; Value: TypeError: Cannot set property 'stack' of undefined
    at NoProviderError.set [as stack] (errors.js:64)
    at assignAll (zone.js:704)
    at NoProviderError.ZoneAwareError (zone.js:775)
    at NoProviderError.BaseError [as constructor] (errors.js:26)
    at NoProviderError.AbstractProviderError [as constructor] (reflective_errors.js:53)
    at new NoProviderError (reflective_errors.js:102)
    at ReflectiveInjector_._throwOrNull (reflective_injector.js:994)
    at ReflectiveInjector_._getByKeyDefault (reflective_injector.js:1031)
    at ReflectiveInjector_._getByKey (reflective_injector.js:981)
    at ReflectiveInjector_.get (reflective_injector.js:743)
    at AppModuleInjector.NgModuleInjector.get (ng_module_factory.js:149)
    at CompiledTemplate.proxyViewClass.AppView.injectorGet (view.js:152)
    at CompiledTemplate.proxyViewClass.DebugAppView.injectorGet (view.js:580)
    at CompiledTemplate.proxyViewClass.View_AppComponent_Host0.createInternal (host.ngfactory.js:15)
    at CompiledTemplate.proxyViewClass.AppView.createHostView (view.js:108) TypeError: Cannot set property 'stack' of undefined
    at NoProviderError.set [as stack] (http://localhost:4200/vendor.bundle.js:6012:61)
    at assignAll (http://localhost:4200/vendor.bundle.js:86495:29)
    at NoProviderError.ZoneAwareError (http://localhost:4200/vendor.bundle.js:86566:16)
    at NoProviderError.BaseError [as constructor] (http://localhost:4200/vendor.bundle.js:5974:16)
    at NoProviderError.AbstractProviderError [as constructor] (http://localhost:4200/vendor.bundle.js:53593:16)
    at new NoProviderError (http://localhost:4200/vendor.bundle.js:53642:16)
    at ReflectiveInjector_._throwOrNull (http://localhost:4200/vendor.bundle.js:73398:19)
    at ReflectiveInjector_._getByKeyDefault (http://localhost:4200/vendor.bundle.js:73435:25)
    at ReflectiveInjector_._getByKey (http://localhost:4200/vendor.bundle.js:73385:25)
    at ReflectiveInjector_.get (http://localhost:4200/vendor.bundle.js:73147:21)
    at AppModuleInjector.NgModuleInjector.get (http://localhost:4200/vendor.bundle.js:54496:52)
    at CompiledTemplate.proxyViewClass.AppView.injectorGet (http://localhost:4200/vendor.bundle.js:74156:45)
    at CompiledTemplate.proxyViewClass.DebugAppView.injectorGet (http://localhost:4200/vendor.bundle.js:74584:49)
    at CompiledTemplate.proxyViewClass.View_AppComponent_Host0.createInternal (/AppModule/AppComponent/host.ngfactory.js:15:63)
    at CompiledTemplate.proxyViewClass.AppView.createHostView (http://localhost:4200/vendor.bundle.js:74112:21)
consoleError @ zone.js:420
_loop_1 @ zone.js:449
drainMicroTaskQueue @ zone.js:453
zone.js:422ZoneAwareError {stack: "Error: Uncaught (in promise): TypeError: Cannot se…ocalhost:4200/vendor.bundle.js:86224:35) [<root>]", message: "Uncaught (in promise): TypeError: Cannot set prope…(http://localhost:4200/vendor.bundle.js:74112:21)", originalStack: "Error: Uncaught (in promise): TypeError: Cannot se…(http://localhost:4200/vendor.bundle.js:86224:35)", zoneAwareStack: "Error: Uncaught (in promise): TypeError: Cannot se…ocalhost:4200/vendor.bundle.js:86224:35) [<root>]", name: "Error"…}
consoleError @ zone.js:422
_loop_1 @ zone.js:449
drainMicroTaskQueue @ zone.js:453