'！children.any（（Widget child）=> child == null）'：不正确

Question

我正在使用Flutter创建一个应用程序，但出现了错误框架。飞镖：断言：1655行pos 14：'！children.any（（Widget child）=> child == null）'：不正确。

我已经检查了要发送的列表，所有内容都到达了目的地，但是在尝试构建ListView时仍然出现错误

 Widget _buildList(BuildContext context, List<dynamic> recepies_id, List<dynamic> recepies_diagnosis, List<dynamic> recepies_dateadded, List<dynamic> professionals_name, List<dynamic> professionals_lastnames, List<dynamic> professionals_rut, List<dynamic> professionals_speciality) {
//print(recepies_dateadded);
return ListView.builder(
  padding: const EdgeInsets.only(top: 20.0),
  itemCount: recepies_id.length,
  itemExtent: 80.0,
  itemBuilder: (BuildContext context, int index){
    return ListTile(
      title: Row(
        children: <Widget>[
          Expanded(
            child: Text(professionals_name[index] +' '+ professionals_lastnames[index]),
          ),
          Container(
            child: Text(recepies_dateadded[index]),
          ),
        ],
      ),
      onTap: () => printer(recepies_id[index], professionals_rut[index]),
    );
  },
);
}