小编San*_*thi的帖子

我的飞镖分析在代码中显示以下错误：

error: Evaluation of this constant expression throws an exception. 
        (const_eval_throws_exception at [laundry] 
        lib\pick_drop_ui\pages\works.dart:97) error: Arguments of a constant creation must be constant expressions. 
        (const_with_non_constant_argument at [laundry] 
        lib\pick_drop_ui\pages\works.dart:98) error: Arguments of a constant creation must be constant expressions. 
        (const_with_non_constant_argument at [laundry] 
        lib\pick_drop_ui\pages\works.dart:104) error: Evaluation of this constant expression throws an exception. 
       (const_eval_throws_exception at [laundry] 
       lib\pick_drop_ui\pages\works.dart:104)

在以下代码中：

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';

class work extends StatefulWidget {
  @override
  _workState createState() => _workState();
}

class _workState extends State<work> {

  var workdata;                        //Variable to …