The method '+' was called on null. Receiver: null Tried calling: +(50.0)

[SainathPatil001]

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Page source: https://github.com/flutter/website/tree/master/src/docs/testing/errors.md

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Description of issue:

[sfshaza2]

@SainathPatil001, can you give us more info? (More than the title.). thx

[SainathPatil001]

I/le.rolling_Dic(26572): Starting profile saver IsSaveProfileNow end.
E/flutter (26572): [ERROR:flutter/lib/ui/ui_dart_state.cc(177)] Unhandled Exception: NoSuchMethodError: The method 'findAncestorStateOfType' was called on null.
E/flutter (26572): Receiver: null
E/flutter (26572): Tried calling: findAncestorStateOfType()
E/flutter (26572): #0 Object.noSuchMethod (dart:core-patch/object_patch.dart:51:5)
E/flutter (26572): #1 Navigator.of
package:flutter/…/widgets/navigator.dart:2218
E/flutter (26572): #2 _SplashScreenState.onDoneLoading
package:rolling_Dice/splash.dart:24
E/flutter (26572): #3 _rootRun (dart:async/zone.dart:1182:47)
E/flutter (26572): #4 _CustomZone.run (dart:async/zone.dart:1093:19)
E/flutter (26572): #5 _CustomZone.runGuarded (dart:async/zone.dart:997:7)
E/flutter (26572): #6 _CustomZone.bindCallbackGuarded. (dart:async/zone.dart:1037:23)
E/flutter (26572): #7 _rootRun (dart:async/zone.dart:1190:13)
E/flutter (26572): #8 _CustomZone.run (dart:async/zone.dart:1093:19)
E/flutter (26572): #9 _CustomZone.bindCallback. (dart:async/zone.dart:1021:23)
E/flutter (26572): #10 Timer._createTimer. (dart:async-patch/timer_patch.dart:18:15)
E/flutter (26572): #11 _Timer._runTimers (dart:isolate-patch/timer_impl.dart:397:19)
E/flutter (26572): #12 _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:428:5)
E/flutter (26572): #13 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)

[SainathPatil001]

Sorry I have sorted that error but this in new error

[sfshaza2]

Hi, @SainathPatil001. What code are you running? Is this error from one of our examples?

If this is coming from your own code, then it sounds like you are asking for help. This repo is where to report documentation errors, not ask for support. For that, use one of the resources listed on our flutter.dev/community page.

Good luck!

[SainathPatil001]

Thank you..!