Null check operator used on a null value

[SYND-GITHUB]

I'm using carousel_slider: ^4.1.1

E/flutter (27320): [ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: Null check operator used on a null value E/flutter (27320): #0 CarouselSliderState.getTimer. (package:carousel_slider/carousel_slider.dart:135:63) E/flutter (27320): #1 _rootRunUnary (dart:async/zone.dart:1434:47) E/flutter (27320): #2 _CustomZone.runUnary (dart:async/zone.dart:1335:19) E/flutter (27320): #3 _CustomZone.runUnaryGuarded (dart:async/zone.dart:1244:7) E/flutter (27320): #4 _CustomZone.bindUnaryCallbackGuarded. (dart:async/zone.dart:1281:26) E/flutter (27320): #5 _rootRunUnary (dart:async/zone.dart:1442:13) E/flutter (27320): #6 _CustomZone.runUnary (dart:async/zone.dart:1335:19) E/flutter (27320): #7 _CustomZone.bindUnaryCallback. (dart:async/zone.dart:1265:26) E/flutter (27320): #8 _Timer._runTimers (dart:isolate-patch/timer_impl.dart:398:19) E/flutter (27320): #9 _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:429:5) E/flutter (27320): #10 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:192:12)

[Nigmatulin8]

If you try to use something like animateToPage etc. you can try it https://stackoverflow.com/questions/64822800/null-check-operator-used-on-a-null-value-carousel-flutter

[masumeZarepur]

I have same problem .what did you do to solve this problem ??

[Nigmatulin8]

I have same problem .what did you do to solve this problem ??

Try to put initialization the carouselController inside the initState method.

This is my case

class _PlansPageState extends State<PlansPage> {
    int _currentPage = 1;

    late CarouselController carouselController;

    @override
    void initState() {
        super.initState();
        carouselController = CarouselController();
     }
}

Then I was able to use carouselController.animateToPage(_currentPage); in onTap inside GestureDetector

[rensvis]

I had the same issues because I forgot to add the carouselController to the CarouselSlider:

CarouselSlider.builder( carouselController: carouselController, ...

[heshesh2010]

+1

[yuyangkk]

The same problem. Does anyone have a solution?