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Yes I already searched and the solution on this post didnt work, my scenario is different.

I have a winform application, very simple, it was working, and now the error on the title of this post is shown when I try to open the form.
The only thing I have done is installed VS11 developer preview and vs 2010 SP1.

Any idea how to fix this?>

Community
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Luis Valencia
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2 Answers2

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I managed to solve it, I checked on properties of the project and the framework selected was .net 4.0 client profile.

I changed it to .net 4.0 and then it worked.

by the way what does it mean client profile, what is it for??

Luis Valencia
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    Client profile loads fewer DLLs in an attempt to be lighter for distribution... it's the default and it always causes headaches. – canon Oct 07 '11 at 17:14
  • I had this problem with .net 4.0 framework! and I solved my problem by changing framework to another version and again change it to version 4.0 – Mahdi Ghiasi Dec 09 '11 at 19:03
  • I had this problem after creating a new local repository with the 4.7.1 framework. I changed version back to 4.7 and then 4.7.1 again and it worked again. – Mark Baijens Nov 12 '18 at 09:18
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Just had this happen to me. I was banging my head on my desk in frustration as to why. Closed and reopened Visual Studio and it was fixed. Weird.

Ricky
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