奇怪（但需要帮助） - 无法识别的属性'targetFramework'。请注意，属性名称区分大小写。 [英] Strange (but need help)- Unrecognized attribute 'targetFramework'. Note that attribute names are case-sensitive.

问题描述

大家好，



我使用.net framework 4.5构建了一个网站。以下是Web.config文件中的代码段。

Hi All,

I have built one website using the .net framework 4.5 . Here is the code snippet from the Web.config file.

<compilation debug="true" targetFramework="4.5"/>

我在本地计算机IIS7中托管了同一个网站。在创建新网站时，我选择的应用程序池为4.0。当我尝试从浏览器访问相同内容时，我收到以下错误。

I have hosted the same website in my local machine IIS7. While creating a new website, Application pool I selected as 4.0. When I try to access the same from the browser I am getting below error.

Server Error in '/' Application.

Configuration Error

Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. 

Parser Error Message: Unrecognized attribute 'targetFramework'. Note that attribute names are case-sensitive.

Source Error: 


Line 14:   -->
Line 15:   <system.web>
Line 16:     <compilation targetFramework="4.5"/>
Line 17:     <httpRuntime/>
Line 18:     <pages controlRenderingCompatibilityVersion="4.0">

Source File: C:\inetpub\wwwroot\polygontechnologies.com\web.config    Line: 16 

Version Information: Microsoft .NET Framework Version:2.0.50727.5485; ASP.NET Version:2.0.50727.5491

所以，截至目前我有targetFramework = web.config和IIS应用程序池中的4.5是4.0。



任何人帮我解决问题。

So, as of now I have targetFramework="4.5" in web.config and in IIS application pool it is 4.0.

Anybody help me in fixing the issue.

推荐答案

虽然你已经清楚地提到你在应用程序池中选择了

.NET Framework Version = v4.0.XXXXX，但是你的错误说你仍然有.NET Framework版本=选择了v2.0.XXXXX。



再次访问IIS并查看。

Although you have clearly mentioned that you have selected
.NET Framework Version = v4.0.XXXXX in application pool, but your error says you still have .NET Framework Version = v2.0.XXXXX selected.

Go to the IIS again and check.

IIS  -- Right Click on your hosted website -- Advanced Settings -- Application Pool -- Select version 4.0

如果这不起作用，请确保已在系统中安装.Net framework 4.5。

如何找到.NET版本？ [ ^ ]



希望，它有帮助：）

If this doesn't work then make sure that you have installed .Net framework 4.5 in your system.
How to find the .NET version?[^]

Hope, it helps :)

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