Home > Asp.net MVC, MVC, My Handy References > How to fix the issue Unrecognized attribute ‘targetFramework’.

How to fix the issue Unrecognized attribute ‘targetFramework’.

Issue:

Recently, I am having issues with deploying asp.net mvc 4 application to Windows Server 2008 R2.After add the necessary role and features and I setup an application in IIS. However , I received the following error message: Unrecognized attribute ‘targetFramework’.

Solution:

It turns out that this is because App pool is not configured to use .net 4.0, after changing from .net 2.0 to .net 4.0. It works like a charm.


Note if .net v4.0x does not show up under .NET Framework version dropdown, you can need to install .net or re-register .NET 4 with IIS, you can check my previous blogpost to learn how to do it.

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