Error: Either zero or 2 or more [DropdownMenuItem]s were detected with the same value I/flutter (18363): 'package:flutter/src/material/dropdown.dart':

Question

Error code Hi I\'m new to flutter and have a question about dropdownbutton regarding using the same values for multiple dropdownbutton.

From my understanding from th

Answer 1

_value1 and _value2 variables need to be initialized, or you can do that:

value: _value1 != null ? _value1 : null,
hint: Text('Your hint'),