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POThe primary reference "Microsoft.CSharp", which is a framework assembly, could not be resolved in the currently targeted framework
 

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  1. POThe primary reference "Microsoft.CSharp", which is a framework assembly, could not be resolved in the currently targeted framework
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    <p>I started a new winforms project, fairly simple, has a few labels, text boxes, and a button. All code is running fine. I forgot to change the framework version from 4 (using VS 2010) to 3.5 before I created the app and when I changed it to 3.5 or 3.5 client profile I get the following warning:</p> <blockquote> <p>The primary reference "Microsoft.CSharp", which is a framework assembly, could not be resolved in the currently targeted framework. ".NETFramework,Version=v3.5". To resolve this problem, either remove the reference "Microsoft.CSharp" or retarget your application to a framework version which contains "Microsoft.CSharp".</p> </blockquote> <p>It's not a huge amount of trouble to recreate this with a 3.5 setting from the start and I'm fairly sure I'm not using anything from the 4 framework that I need.</p>
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    1. USCaley Woods
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      1. POThe primary reference "Microsoft.CSharp", which is a framework assembly, could not be resolved in the currently targeted framework
      1. USMatt Greer
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    1. COWhat exactly is the question you are trying to ask?
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      1. USGoronmon
    2. COSo you follow the warning and remove the reference or retarget to at least .NET 4.0. What's the issue?
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    3. COThe issue was I wasn't sure how to remove the reference, all fixed now.
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      1. USCaley Woods
 

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