AndroidStudio使用sqflite2.2.0+3时出现2个错误:方法join没有为类uploadIntoDb定义。未定义类DeepCollectionEquality。我的代码:import'package:flutter/material.dart';import'dart:async';import'package:sqflite/sqflite.dart';classUploadPageextendsStatefulWidget{@overrideStatecreateState(){returnnewUploadPageState();}}classUploadPag

AndroidStudio使用sqflite2.2.0+3时出现2个错误:方法join没有为类uploadIntoDb定义。未定义类DeepCollectionEquality。我的代码:import'package:flutter/material.dart';import'dart:async';import'package:sqflite/sqflite.dart';classUploadPageextendsStatefulWidget{@overrideStatecreateState(){returnnewUploadPageState();}}classUploadPag