Question

我正在尝试在iPhone 7上运行我的flutter应用程序，但收到一条错误消息。在我的Android手机以及iPhone XR模拟器上运行该应用程序都可以正常工作。我还尝试在iPad上测试该应用程序，但收到了完全相同的错误消息，如下所示。用新副本替换ios文件夹并不能解决问题。

我尝试运行最新的sqflite版本，而Flutter Doctor没有显示任何问题。

Future<Database> initDatabase() async {
    //Get the dir
    Directory directory = await getApplicationDocumentsDirectory();
    String path = directory.path + 'posts.db';

    //Open or Create the database using given path
    var postsDataBase = openDatabase(path, version: 1, onCreate: _createDb);
    return postsDataBase;
  }

[VERBOSE-2:ui_dart_state.cc(148)] Unhandled Exception: DatabaseException(open_failed /var/mobile/Containers/Data/Application/04C0A23F-6C36-42C2-9CE5-C7C5370F59FA/Documentsposts.db)
#0      wrapDatabaseException 
package:sqflite/src/exception_impl.dart:11
<asynchronous suspension>
#1      SqfliteDatabaseFactoryImpl.wrapDatabaseException 
package:sqflite/src/factory_impl.dart:29
#2      SqfliteDatabaseMixin.safeInvokeMethod 
package:sqflite/src/database_mixin.dart:184
#3      SqfliteDatabaseMixin.openDatabase 
package:sqflite/src/database_mixin.dart:519
<asynchronous suspension>
#4      SqfliteDatabaseMixin.doOpen 
package:sqflite/src/database_mixin.dart:612
<asynchronous suspension>
#5      SqfliteDatabaseOpenHelper.openDatabase 
package:sqflite/src/database.dart:32
<asynchronous suspension>
#6      SqfliteDatabaseFactoryMixin.openDatabase.<anonymous closure> 
package:sqflite/src/factory_mixin.dart:100
<asynchronous suspension>
#7      ReentrantLock.synchronized.<anonymous closure>.<anonymous closure> 
package:synchronized/src/reentrant_lock.dart:33
#8      _rootRun  (dart:async/zone.dart:1124:13)

Answer 1

检查父目录是否存在，然后尝试使用最新的sqlite版本。

如何修复“ flutter：DatabaseException（open_failed ...）”？

1 个答案: