error: Not a constant expression: unexpected kernel tag InvalidExpression (19)

[Denmal1982]

Version of flutter_calendar_carousel

flutter_calendar_carousel: ^1.3.3

body:
import 'package:flutter_calendar_carousel/flutter_calendar_carousel.dart' show CalendarCarousel;
Container(
child: CalendarCarousel()
)

I/flutter (24871): ══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
I/flutter (24871): The following _CompileTimeError was thrown building MainWidget(dirty, state:
I/flutter (24871): _MainWidgetState#8c468):
I/flutter (24871): 'package:flutter_calendar_carousel/flutter_calendar_carousel.dart': error: Not a constant
I/flutter (24871): expression: unexpected kernel tag InvalidExpression (19)
I/flutter (24871):
I/flutter (24871): When the exception was thrown, this was the stack:
I/flutter (24871): #0 _MainWidgetState.build (file:///D:/android/projects/polnayazapis/lib/main.dart:36:18)
I/flutter (24871): #1 StatefulElement.build (package:flutter/src/widgets/framework.dart:3766:27)
I/flutter (24871): #2 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3678:15)
I/flutter (24871): #3 Element.rebuild (package:flutter/src/widgets/framework.dart:3531:5)
I/flutter (24871): #4 StatefulElement.update (package:flutter/src/widgets/framework.dart:3835:5)
I/flutter (24871): #5 Element.updateChild (package:flutter/src/widgets/framework.dart:2729:15)
I/flutter (24871): #6 SingleChildRenderObjectElement.update (package:flutter/src/widgets/framework.dart:4803:14)
I/flutter (24871): #7 Element.updateChild (package:flutter/src/widgets/framework.dart:2729:15)
I/flutter (24871): #8 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:3689:16)
I/flutter (24871): #9 Element.rebuild (package:flutter/src/widgets/framework.dart:3531:5)

Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel beta, v0.9.4, on Microsoft Windows [Version 10.0.17134.472], locale ru-RU)
[√] Android toolchain - develop for Android devices (Android SDK 28.0.3)
[√] Android Studio (version 3.2)
[√] Connected devices (1 available)

[atnegrete]

The same thing is happening to me. Must be a new bug? I noticed the last PR in was 2 days ago though

[hyochan]

Could you test the exmaple project and comeback? I can't see any fixes just reading this.

[atnegrete]

I cloned the project & I had to update all the double assignments using integers to double, essentially adding '.0'

[Denmal1982]

I cloned the project & I had to update all the double assignments using integers to double, essentially adding '.0'

it works, thanks

[hyochan]

Which variable is it?

[atnegrete]

in example\lib\main.dart replaced borderRadius: BorderRadius.all(Radius.circular(1000)) with borderRadius: BorderRadius.all(Radius.circular(1000.0))

in lib\flutter_calendar_carousel.dart

added import 'dart:async'; to use the Future class.

this.markedDateIconMargin = 5, this.markedDateIconOffset = 5,

to
this.markedDateIconMargin = 5.0, this.markedDateIconOffset = 5.0,

and lastly

Positioned(
                bottom: 0,
                right: 0,
                child: Container(
                  padding: EdgeInsets.all(3),
                  decoration: widget.markedDateMoreCustomDecoration == null
                      ? new BoxDecoration(
                    color: Colors.red,
                    borderRadius: BorderRadius.all(Radius.circular(1000)),
                  )
                      : widget.markedDateMoreCustomDecoration
                  ,
                  child: Center(
                    child: Text(
                      widget.markedDateMoreShowTotal ? (count + widget.markedDateIconMaxShown).toString() : (count.toString() + '+'),
                      style: widget.markedDateMoreCustomTextStyle == null
                          ? TextStyle(
                          fontSize: 9,
                          color: Colors.white,
                          fontWeight: FontWeight.normal
                      )
                          : widget.markedDateMoreCustomTextStyle
                      ,
                    ),
                  ),
                ),
              )

to

 Positioned(
                bottom: 0.0,
                right: 0.0,
                child: Container(
                  padding: EdgeInsets.all(3.0),
                  decoration: widget.markedDateMoreCustomDecoration == null
                      ? new BoxDecoration(
                    color: Colors.red,
                    borderRadius: BorderRadius.all(Radius.circular(1000.0)),
                  )
                      : widget.markedDateMoreCustomDecoration
                  ,
                  child: Center(
                    child: Text(
                      widget.markedDateMoreShowTotal ? (count + widget.markedDateIconMaxShown).toString() : (count.toString() + '+'),
                      style: widget.markedDateMoreCustomTextStyle == null
                          ? TextStyle(
                          fontSize: 9.0,
                          color: Colors.white,
                          fontWeight: FontWeight.normal
                      )
                          : widget.markedDateMoreCustomTextStyle
                      ,
                    ),
                  ),
                ),
              )

[hyochan]

Is this still occurring in a recent version which is 1.3.7?

[atnegrete]

I was on vacation. I will take a look at it tonight. Thanks for the update!

[atnegrete]

Yes, it is still occurring.

[hyochan]

Thank you for the fix. I hope you can give us PR next time.
This is very strange that it didn't catch type error in plugins environment.

Hope you to confirm this in 1.3.8.