Cell tap error

[kailash-elivaas]

Describe the bug
when tap on cell, for fraction of sec it show below error

The relevant error-causing widget was:
AnimatedContainer AnimatedContainer:file:///Users/kailashkhurana/.pub-cache/hosted/pub.dev/table_calendar-3.1.3/lib/src/widgets/cell_content.dart:81:11
When the exception was thrown, this was the stack:
flutter/flutter#2 BoxDecoration.debugAssertIsValid (package:flutter/src/painting/box_decoration.dart:134:7)
flutter/flutter#3 new Container (package:flutter/src/widgets/container.dart:272:48)
flutter/flutter#4 _AnimatedContainerState.build (package:flutter/src/widgets/implicit_animations.dart:827:12)
flutter/flutter#5 StatefulElement.build (package:flutter/src/widgets/framework.dart:5841:27)
flutter/flutter#6 ComponentElement.performRebuild (package:flutter/src/widgets/framework.dart:5733:15)
flutter/flutter#7 StatefulElement.performRebuild (package:flutter/src/widgets/framework.dart:5892:11)
flutter/flutter#8 Element.rebuild (package:flutter/src/widgets/framework.dart:5445:7)
flutter/flutter#9 BuildScope._tryRebuild (package:flutter/src/widgets/framework.dart:2704:15)

To reproduce
use table_calendar: ^3.1.3

add below builder property
selectedDayPredicate: (day) {
if (leadCalendarBloc.selectedCheckInDate != null &&
leadCalendarBloc.selectedCheckOutDate != null) {
return day.isAtSameMomentAs(
leadCalendarBloc.selectedCheckInDate!) ||
day.isAtSameMomentAs(
leadCalendarBloc.selectedCheckOutDate!);
} else if (leadCalendarBloc.selectedCheckInDate != null) {
return day.isAtSameMomentAs(
leadCalendarBloc.selectedCheckInDate!);
}
return false;
},

Steps to reproduce the behavior:
select rage on tap any date for range it give error

[jobinjoy2019]

If you come across a solution, please update. i am also facing similar issue.

[battletech45]

Hi,
While using the TableCalendar package, I encountered a Flutter assertion error related to BoxDecoration: 'shape != BoxShape.circle || borderRadius == null': is not true.

This happens because AnimatedContainer tries to interpolate between two incompatible decoration shapes — one using BoxShape.circle (e.g., todayDecoration) and another using borderRadius with BoxShape.rectangle (e.g., selectedDecoration or rangeStartDecoration). Flutter doesn’t allow mixing circle shape with borderRadius.

To fix it, I made sure all my calendar decorations use BoxShape.rectangle and set a consistent borderRadius. Also override 'disabledDecoration' of CalendarStyle while decorating calendar.

Overriding disabledDecoration fixed my issue. I hope it can fix yours.