[macos]: Failed assertion: line 267 pos 15: 'margin == null || margin.isNonNegative': is not true.

[kimmy-wang]

'package:flutter/src/widgets/container.dart': Failed assertion: line 267 pos 15: 'margin == null || margin.isNonNegative': is not true.
      #0      _AssertionError._doThrowNew (dart:core-patch/errors_patch.dart:51:61)
      #1      _AssertionError._throwNew (dart:core-patch/errors_patch.dart:40:5)
      #2      new Container (package:flutter/src/widgets/container.dart:267:15)
      #3      IntroSliderState.renderNav (package:intro_slider/src/intro_slider_widget.dart:664:34)
      #4      IntroSliderState.build (package:intro_slider/src/intro_slider_widget.dart:572:13)
      #5      StatefulElement.build (package:flutter/src/widgets/framework.dart:4992:27)
      #6      ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4878:15)
      #7      StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5050:11)
      #8      Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #9      StatefulElement.update (package:flutter/src/widgets/framework.dart:5082:5)
      #10     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #11     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #12     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #13     StatelessElement.update (package:flutter/src/widgets/framework.dart:4956:5)
      #14     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #15     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #16     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #17     StatelessElement.update (package:flutter/src/widgets/framework.dart:4956:5)
      #18     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #19     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #20     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #21     ProxyElement.update (package:flutter/src/widgets/framework.dart:5228:5)
      #22     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #23     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #24     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #25     ProxyElement.update (package:flutter/src/widgets/framework.dart:5228:5)
      #26     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #27     RenderObjectElement.updateChildren (package:flutter/src/widgets/framework.dart:5904:32)
      #28     MultiChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6460:17)
      #29     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #30     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #31     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #32     ProxyElement.update (package:flutter/src/widgets/framework.dart:5228:5)
      #33     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #34     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #35     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5050:11)
      #36     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #37     StatefulElement.update (package:flutter/src/widgets/framework.dart:5082:5)
      #38     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #39     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #40     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5050:11)
      #41     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #42     StatefulElement.update (package:flutter/src/widgets/framework.dart:5082:5)
      #43     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #44     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #45     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #46     ProxyElement.update (package:flutter/src/widgets/framework.dart:5228:5)
      #47     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #48     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #49     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5050:11)
      #50     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #51     StatefulElement.update (package:flutter/src/widgets/framework.dart:5082:5)
      #52     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #53     SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6307:14)
      #54     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #55     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #56     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #57     ProxyElement.update (package:flutter/src/widgets/framework.dart:5228:5)
      #58     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #59     SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:6307:14)
      #60     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #61     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #62     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5050:11)
      #63     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #64     StatefulElement.update (package:flutter/src/widgets/framework.dart:5082:5)
      #65     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #66     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #67     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5050:11)
      #68     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #69     StatefulElement.update (package:flutter/src/widgets/framework.dart:5082:5)
      #70     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #71     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #72     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #73     ProxyElement.update (package:flutter/src/widgets/framework.dart:5228:5)
      #74     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #75     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #76     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #77     ProxyElement.update (package:flutter/src/widgets/framework.dart:5228:5)
      #78     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #79     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #80     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #81     ProxyElement.update (package:flutter/src/widgets/framework.dart:5228:5)
      #82     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #83     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #84     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5050:11)
      #85     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #86     StatefulElement.update (package:flutter/src/widgets/framework.dart:5082:5)
      #87     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #88     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #89     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #90     ProxyElement.update (package:flutter/src/widgets/framework.dart:5228:5)
      #91     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #92     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #93     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5050:11)
      #94     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #95     StatefulElement.update (package:flutter/src/widgets/framework.dart:5082:5)
      #96     Element.updateChild (package:flutter/src/widgets/framework.dart:3570:15)
      #97     ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:4904:16)
      #98     StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5050:11)
      #99     Element.rebuild (package:flutter/src/widgets/framework.dart:4604:5)
      #100    BuildOwner.buildScope (package:flutter/src/widgets/framework.dart:2667:19)
      #101    WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:882:21)
      #102    RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:378:5)
      #103    SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1175:15)
      #104    SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1104:9)
      #105    SchedulerBinding.scheduleWarmUpFrame.<anonymous closure> (package:flutter/src/scheduler/binding.dart:881:7)
      #106    Timer._createTimer.<anonymous closure> (dart:async-patch/timer_patch.dart:18:15)
      #107    _Timer._runTimers (dart:isolate-patch/timer_impl.dart:398:19)
      #108    _Timer._handleMessage (dart:isolate-patch/timer_impl.dart:429:5)
      #109    _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:192:12)

[ozhankucuk]

I have same problem.Is there any solution
thanks
my version is below

intro_slider: ^3.0.4

sdk: ">=2.12.0 <3.0.0"

[duytq94]

@kimmy214 which version you are using?
@kimmy214 @ozhankucuk can you guys explain the step to reproduce this issue

[ozhankucuk]

I added library as example.I changed asset file only.

List slides = [];

@OverRide
void initState() {
super.initState();

slides.add(
  Slide(
    title: "ERASER",
    description:
        "Allow miles wound place the leave had. To sitting subject no improve studied limited",
    pathImage: "images/photo_eraser.png",
    backgroundColor: const Color(0xfff5a623),
  ),
);
slides.add(
  Slide(
    title: "PENCIL",
    description:
        "Ye indulgence unreserved connection alteration appearance",
    pathImage: "images/photo_pencil.png",
    backgroundColor: const Color(0xff203152),
  ),
);
slides.add(
  Slide(
    title: "RULER",
    description:
        "Much evil soon high in hope do view. Out may few northward believing attempted. Yet timed being songs marry one defer men our. Although finished blessing do of",
    pathImage: "images/photo_ruler.png",
    backgroundColor: const Color(0xff9932CC),
  ),
);

}

void onDonePress() {
// Do what you want
print("End of slides");
}

@OverRide
Widget build(BuildContext context) {
return IntroSlider(
slides: slides,
onDonePress: onDonePress,
);
}

[duytq94]

oh, I see [macos] at the title thread, did you guys mean the issue happening when run macOS (desktop) environment?

[ozhankucuk]

macos, I guess IOS smilator.

I decided to use other library.

[duytq94]

Thanks, @ozhankucuk for your report, but I can't reproduce the issue.
Needing more info from other developers or details step case, device, environment...

[ozhankucuk]

thanks :)

[enilsonfilho]

I had the same problem, and I ended up discovering that the cause was not in the IntroSlider, but in my logic... The List(Slide) was empty, which ended up generating this problem :')

For some reason, when building the screen, the List(Slide) didn't have time to fill in, which causes the problem...

I forced it into an async method using await, and it worked (with FutureBuilder), because in my case the information is not static.

Pay attention to @initstate setting the information correctly.