无法从"System.Data.Objects.ObjectParameter"转换为"System.Data.Entity.Core.Objects.ObjectParameter" [英] cannot convert from 'System.Data.Objects.ObjectParameter' to 'System.Data.Entity.Core.Objects.ObjectParameter'

问题描述

在创建 ADO.NET实体数据模型之后，发生错误:

While creating an ADO.NET Entity Data Model, following error occured:

错误66参数10:无法从'System.Data.Objects.ObjectParameter'转换为'System.Data.Entity.Core.Objects.ObjectParameter'D:\ Aziz \ Aziz Project \ Development \ Running Development \ Web \ pos \ pos \ Model1.Context.cs 351278 pos

Error 66 Argument 10: cannot convert from 'System.Data.Objects.ObjectParameter' to 'System.Data.Entity.Core.Objects.ObjectParameter' D:\Aziz\Aziz Project\Development\Running Development\Web\pos\pos\Model1.Context.cs 351 278 pos

如何解决此错误?

推荐答案

using System.Data.Object;
using System.Data.Objects.DataClasses;

替换为:

using System.Data.Entity.Core.Objects;
using System.Data.Entity.Core.Objects.DataClasses;

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