The method 'withValues' isn't defined for the class 'Color'

[TechSchuppen-SH]

i have installed the package and integrate it in my code:
EasyDateTimeLinePicker.itemBuilder(
firstDate: DateTime(2025, 1, 1),
lastDate: DateTime(2030, 3, 18),
focusedDate: DateTime.now(),
itemExtent: 64.0,
itemBuilder:
(context, date, isSelected, isDisabled, isToday, onTap) {
return InkResponse(
onTap: onTap,
child: CircleAvatar(
backgroundColor: isSelected ? Colors.blue : null,
child: Text(date.day.toString()),
),
);
},
onDateChange: (date) {
// setState(() {
// _selectedDate = date;
// });
},
),

Now i get following error message:
Error (Xcode): ../../.pub-cache/hosted/pub.dev/easy_date_timeline-2.0.6/lib/src/easy_date_time_line_picker/picker/picker_button/picker_button.dart:62:54: Error: The method 'withValues' isn't defined for the class 'Color'.

Could not build the application for the simulator.
Error launching application on iPhone 16 Pro.

Can you help me?

[TechSchuppen-SH]

i get the error only after the installing and restart my app. (version: easy_date_timeline: ^2.0.0)

[ZontarZon]

Just ran into this issue as well. Try 2.0.4. The two most recent updates seem to have this bug.

[kewitschka]

Same happens here since updating from v1 to v2 (2.0.6) with flutter 27.0.1 With flutter 2.24.5 it seems to work.

[FadyFayezYounan]

@TechSchuppen-SH @ZontarZon @kewitschka
Hi, this issue occurs because withValues is compatible only with the latest Flutter version (27.0.1). If you're not using this version, you can use easy_date_timeline 2.0.4, which should work for you.