如何解决错误“CS0234：名称空间'System.Web'中不存在类型或命名空间名称'优化'（您是否缺少程序集引用？）" [英] How to resolve error "CS0234: The type or namespace name 'Optimization' does not exist in the namespace 'System.Web' (are you missing an assembly reference?)"

问题描述

我在VS 2012中创建了asp .net web表单应用程序并运行default.aspx页面。

我遇到了运行时错误

I have created asp .net web form application in VS 2012 and run the default.aspx page.
I got following runtime error

Server Error in '/' Application.
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: CS0234: The type or namespace name 'Optimization' does not exist in the namespace 'System.Web' (are you missing an assembly reference?)

Source Error:


Line 17:     <pages>
Line 18:       <namespaces>
Line 19:         <add namespace="System.Web.Optimization" />
Line 20:       </namespaces>
Line 21:       <controls>


Source File: .../WebApp2/Web.config    Line: 19


Show Detailed Compiler Output:

Show Complete Compilation Source:


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.17929

按照go搜索这个错误的解决方案，我试图通过复制System.Web来解决.Optimization.dll从包文件夹到bin文件夹但问题未解决。

请给出解决方案。

As per show solution by googling this error, I have tried to resolved by copy System.Web.Optimization.dll from package folder to bin folder but issue not resolved.
Please give the solution.

推荐答案

尝试通过nuget安装Microsoft.AspNet.Web.Optimization（因为它没有被框架安装） ）。

在nuget提示符下尝试 install-package Microsoft.AspNet.Web.Optimization 。

Try installing Microsoft.AspNet.Web.Optimization via nuget (as it is not installed by the framework).
Try install-package Microsoft.AspNet.Web.Optimization in the nuget prompt.

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