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flutter - build-runner 的 Flutter-moor 生成器问题

问题描述

每当我尝试运行时，flutter packages pub run build_runner watch我都会在终端中收到此错误消息

Failed to precompile build_runner:build_runner:
/C:/src/flutter/.pub-cache/hosted/pub.dartlang.org/dart_style-1.3.3/lib/src/dart_formatter.dart:105:30: Error: Too
many positional arguments: 0 allowed, but 1 found.
Try removing the extra positional arguments.
    scanner.configureFeatures(featureSet);
                             ^
pub finished with exit code 1

这发生在我从 ^1.6.0 => ^ 3.0.0 更新 moor_flutter 插件之后 旧插件没有错误 这是我的代码

import 'package:moor_flutter/moor_flutter.dart';
part 'Database.g.dart';
class Users extends Table {
  IntColumn get id => integer().autoIncrement()();
  TextColumn get name => text().withLength(min:1,max:50)();
  TextColumn get mobile => text().withLength(min:1,max:25)();
  DateTimeColumn get birthdate => dateTime()();
}
@UseMoor(tables : [Users ],daos:[UserDao])
class AppDatabase extends _$AppDatabase {
  AppDatabase():super(FlutterQueryExecutor.inDatabaseFolder(path: 'db.sqlite',
  logStatements: true));

  @override
  int get schemaVersion =>1;
}
@UseDao(tables:[Users ],)
class UserDao extends DatabaseAccessor<AppDatabase> with _$UserDaoMixin{
final AppDatabase db;
UserDao(this.db):super(db);

Future <List<User>> getAllUsers() => select(users).get();
  Stream <List<User>> watchAllUsers() {
    return (select(users)
            ..orderBy([
              (p)=> OrderingTerm(expression:p.id,mode:OrderingMode.desc ),
              // (p)=> OrderingTerm(expression:p.id,mode:Ordering.desc )
            ])
            )
            .watch();

  }
  Stream <List<User>> watchUsersByName(String txt) {
    
     String qu="SELECT * FROM users where ";
     for (int i = 0; i < txt.length-1; i++){
            String c = txt[i];        
            qu=qu+"name like '%"+c+"%' and ";
        }
     qu=qu+"name like '%"+txt[txt.length-1]+"%' ORDER BY id DESC";
     return customSelectStream(
      qu,readsFrom: {users}
     ).map((rows){
       return rows.map((row) => User.fromData(row.data,db)).toList();
     });

   }
    
 
  Future insertUser(Insertable<User> user) => into(users).insert(user);
  Future updateUser(Insertable<User> user) => update(users).replace(user);
  Future deleteUser(Insertable<User> user) => delete(users).delete(user);
}

vs 代码在 Appdatabase 构造函数和 customselectstream 函数中给了我错误，但我在他们的 Github 存储库中搜索了示例，发现 Appdatabase 构造函数与我的相同。在我评论 watchusersbyname 后问题仍然存在，我也尝试从 Appdatabase 构造函数中的 super 中删除参数，但没有任何改变，所以你能告诉我有什么问题吗？提前致谢。

标签： flutterflutter-moor

解决方案

这是您需要运行并检查解决方案的一个命令

flutter pub upgrade

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