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Visual Inheritance Error Message - How to Fix?

Posted on 2003-02-27
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Last Modified: 2010-07-27
I have a C# Windows Solution with 3 projects:
ROI_Main - WinForm application and startup project
ROI_Validation - Class library
ROI_Base - Class library with a base WinForm.

I want to visually inherit the form I created in ROI-Base in the Main Program - ROI_Main.

I choose 'Add Inherited Form' from the popup menu, and choose the 'Default_Form' from the ROI_Base project's DLL file - via the wizard.

I then get a really wierd error message:
"Unable to add reference 'ROI_Base' to the current application. Check that a different version of 'ROI_Base' is not already referenced."

What am I doing wrong?
How do I recover from this?
How do I get visual inheritance to work?

I'm sure I'm missing something simple - I just can't see it. ...

Regards,
NM
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Question by:NetMeister
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Accepted Solution

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TwinkyT earned 280 total points
ID: 8195343
Hi there NetMeister,

I had the same problem that you are currently experiencing.  The way that I got around this problem is to take the individual projects within my Solution and separate them into other solutions.  So for instance if your solution contains 2 projects, one is the orignal form and the other project contains the inherited form.  Separate the solution into two solutions instead.  This worked for me.  Definitely seems to be a bug in .NET.

Hope that it helps!!

TwinkyT
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Author Comment

by:NetMeister
ID: 8200397
Thanks TwinkyT! It did the trick and I'm "cooking"!
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