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System.InvalidOperationException:“The Entity Framework provider type ‘System.Data.Entity.SqlServer.S_system.invalidoperationexception:鈥淭he entity frame

作者：人工智能uu | 2024-07-27 22:29:15

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system.invalidoperationexception:鈥淭he entity framework provider type 'syste

错误的相信信息如下描述：

An exception of type ‘System.InvalidOperationException’ occurred in mscorlib.dll but was not handled in user code
Additional information: The Entity Framework provider type ‘System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer’ registered in the application config file for the ADO.NET provider with invariant name ‘System.Data.SqlClient’ could not be loaded. Make sure that the assembly-qualified name is used and that the assembly is available to the running application. See http://go.microsoft.com/fwlink/?LinkId=260882 for more information.

截图如下

查看项目引用，发现少了对应的DLL

查看bin目录下，确实少了DLL文件

解决方法：只添加 EntityFramework.SqlServer.dll 即可

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原文链接：https://blog.csdn.net/qq_39797713/article/details/114015887

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