Flutter 参数不匹配的闭包调用：函数

我试图在按下按钮时显示一个警报对话框，但由于某种原因，我得到了这个错误。我对另一个小部件使用相同的代码，它会毫无问题地显示出来，我不知道为什么它不工作

IconButton(
                        icon: Icon(Icons.delete),
                        color: Colors.red[400],
                        onPressed: () => showDialog(
                          context: context,
                          builder: (context) => AlertDialog(
                            title: Text(
                              'DELETE?'.toUpperCase(),
                            ),
                            actions: [
                              TextButton(
                                onPressed: (){},
                                child: Text("Yes"),
                              ),
                              TextButton(
                                onPressed: (){},
                                child: Text("No"),
                              ),
                            ],
                          ),
                        ),
                      ),

这就是我得到的：

Closure call with mismatched arguments: function '_HomeScreenState.getWalletsItemsFromDb.<anonymous closure>.<anonymous closure>'
Receiver: Closure: () => void
Tried calling: _HomeScreenState.getWalletsItemsFromDb.<anonymous closure>.<anonymous closure>(builder: Closure: (dynamic) => AlertDialog, context: Instance of 'StatelessElement')
Found: _HomeScreenState.getWalletsItemsFromDb.<anonymous closure>.<anonymous closure>() => void

参数不匹配的闭包调用：函数“\u homescrenstate.getWalletsItemsFromDb..”
接收人：关闭：（）=>无效
尝试调用：_homescrenstate.getWalletsItemsFromDb..（生成器：Closure:（dynamic）=>AlertDialog，上下文：无状态元素的实例）
找到：_homescrenstate.getWalletsItemsFromDb..（）=>void