autoCloseDuration

[hdamis]

Hi,
I am trying to autoCloseDuration if the user didn't clicked on the ok button during 5 seconds,

CoolAlert.show(
context: context,
type: CoolAlertType.success,
title: 'hello' ,
text: "Thanks for choosing us",

                              closeOnConfirmBtnTap: false,
                             onConfirmBtnTap: () async {

                              Navigator.of(context).pop();
                              
                              },
                              autoCloseDuration: const Duration(seconds: 5),

                  );

but when the user clicked on ok after 5 seconds the app crashed. any idea.