Java 名称'；文件'；在库中定义'；dart:html'；和'；dart:io'；

有人知道如何解决这个错误吗这是我的代码和导入错误在“文件”中错误如下：

名称“File”在库“dart:html”和“dart:io”中定义

---

请检查您是否需要

dart.html

。 如果需要这两个包，可以使用typecast操作符

as

//import
import 'dart:io' as io;
import 'dart:html';


//Usage
io.File imageFile;
File htmlFile;

---

问：您是否尝试过使用包名限定变量类型，例如

io.File imageFile？使用条件导入：
import 'dart:async';
import 'dart:html';
import 'dart:io';
import 'package:file/file.dart';
import 'package:cached_network_image/cached_network_image.dart';
import 'package:cloud_firestore/cloud_firestore.dart';
import 'package:firebase_storage/firebase_storage.dart';
import 'package:flutter/material.dart';
import 'package:telegramchatapp/Widgets/FullImageWidget.dart';
import 'package:telegramchatapp/Widgets/ProgressWidget.dart';
import 'package:fluttertoast/fluttertoast.dart';
import 'package:image_picker/image_picker.dart';
import 'package:intl/intl.dart';
import 'package:shared_preferences/shared_preferences.dart';

//import
import 'dart:io' as io;
import 'dart:html';


//Usage
io.File imageFile;
File htmlFile;