老师，您好，我在Package Manager Console数据库迁移时提示如下错误：A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SNI_PN11, error: 50 - Local Database Runtime error occurred. 无法创建自动实例。有关错误详细信息，请参阅 Windows 应用程序事件日志。,请问如何解决。