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I know that alot have asked this question.

I tried to upload my webpage to the server, but somehow it was not working. So I made a Default Web Application in VS. This I have tried to publish and it gave me this error. The site is: http://142627.testdom.dk/

Unrecognized attribute 'targetFramework'. Note that attribute names are case-sensitive

First I noticed that IIS wasnt enabled, so I enabled that.

Then I followed the manuals for installing ASP.NET 4.0 via terminal.

Then I tried to find my webpage in Internet Information Services and Sites. But only a Default Web Site is showed. How can I get the websites I created in VS showed here? I read that I have to enable ASP.NET 4.0 on these Web Site.

Im not sure if I gave you enough info to help me. But im kinda stuck.

Your Sincerely Kelvin.

Kalle
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2 Answers2

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According to vcsjones' answer:

This typically happens when you have an attribute of targetFramework="4.0" in the web.config but the App Pool is set to run ASP.NET 2.0. The targetFramework attribute is entirely unrecognized by ASP.NET 2.0 - so changing it to 2.0 won't have the desired effect.

Contact Support / Your Administrator and have the AppPool switched to 4.0.

You could also remove the attribute entirely, however if your site was coded with the 4.0 Framework, then I'm sure something else will cause an error as well.

Registering the framework with IIS :

C:\WINDOWS\Microsoft.NET\Framework\v4.0.30319>aspnet_regiis -i

(Or)

In menu:

Website -> Start Options -> build tab - > Select Target Framework in combo box (.NET FrameWork 4)

Community
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Vignesh Kumar A
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    Additionally, please remove from Web.config. Leaving this setting in place is not generally recommended for production. – Levi Feb 07 '14 at 06:02
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I found the answer to my problem. The reason was because the server I am running my homepage on, hadnt updated ASP.NET. Now they have, and its working.

Thanks for your time though.

Kalle
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