ChipsInputState missing performSelector override

[noworyta]

Error: The non-abstract class 'ChipsInputState' is missing implementations for these members: ../…/src/chips_input.dart:87 - TextInputClient.performSelector Try to either - provide an implementation, - inherit an implementation from a superclass or mixin, - mark the class as abstract, or - provide a 'noSuchMethod' implementation. class ChipsInputState<T> extends State<ChipsInput<T>> ^^^^^^^^^^^^^^^