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

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I am new to Web application Setup development and installation .I have create Setup File for web application and installed it.During the browse option from IIS Manager it gives following error.

C#

Server Error in '/KDemoSetup1' 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 17: 
Line 18:   <system.web>
Line 19:     <compilation debug="true" targetFramework="4.0" />
Line 20: 
Line 21:     <authentication mode="Forms">

Source File: C:\inetpub\wwwroot\KDemoSetup1\web.config    Line: 19 

Version Information: Microsoft .NET Framework Version:2.0.50727.5485; ASP.NET Version:2.0.50727.5483

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Posted 9-Dec-15 23:21pm

SujataJK

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Andy Lanng 10-Dec-15 5:36am

Check the app pool in IIS. It is often set to .Net2.0 by default. Either change it or create a new app pool with .Net4.0.

In fact - it says as much in the error - I'll add a solution

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Andy Lanng · Accepted Answer · 2015-12-09T23:41:00

IIS runs we applications in specific environments calls AppPools. You can seet which is running your web application in IIS by opening the web apps Advanced Settings (on the right-click menu).

These app pools are usually set to .Net2.0 by default, as yours is:

Version Information: Microsoft .NET Framework Version:2.0.50727.5485; ASP.NET Version:2.0.50727.5483

If you have Asp .Net4.0 installed, then you can just change the app pool settings (in app-pools in IIS) or create a new one for .Net4 apps.

If you haven't installed Asp .Net 4.0 then the steps are simple.

Here's a link on how to do so:

http://stackoverflow.com/questions/4890245/how-to-add-asp-net-4-0-as-application-pool-on-iis-7-windows-7[^]
(sorry for the cross-forum link)

Hope that helps. Let me know if you get stuck

Andy