任何想法为什么我得到下面的错误在我的MVC2项目，即使通过在项目本身我绝对有一个引用“system.Web.Entity”？
Compiler Error Message: CS0234: The type or namespace name 'Entity' does not exist in the namespace 'System.Data' (are you missing an assembly reference?) Source Error: Line 1: <%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<List<Node>>" %> Line 2: <%@ Import Namespace="TopologyDAL" %> Line 3: <%@ Import Namespace="System.Data.Entity" %>
谢谢
编辑 – 顺便说一句，如果我拿出第3行，那么我得到的错误：
Compilation Error Description: An error occurred during the compilation of a resource required to service this request. Please review the following specific error details and modify your source code appropriately. Compiler Error Message: CS0012: The type 'System.Data.Objects.DataClasses.EntityObject' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Data.Entity,Version=4.0.0.0,Culture=neutral,PublicKeyToken=b77a5c561934e089'. Source Error: Line 164: Line 165: [System.Runtime.CompilerServices.CompilerGlobalScopeAttribute()] Line 166: public class views_node_index_aspx : System.Web.Mvc.ViewPage<List<Node>>,System.Web.SessionState.IRequiresSessionState,System.Web.IHttpHandler { Line 167: Line 168: private static bool @__initialized; Source File: c:\WINDOWS\Microsoft.NET\Framework\v4.0.30319\Temporary ASP.NET Files\root\6ec16fd2\a2147d7c\App_Web_index.aspx.1b64bdf1.ajruf7pv.0.cs Line: 166