Microsoft KB Archive/841646

= FIX: You may receive the &quot;Reference required to assembly&quot; error message when you try to build a solution in Visual Studio .NET 2003 =

PSS ID Number: 841646

Article Last Modified on 9/30/2004

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The information in this article applies to:


 * Microsoft Visual Studio .NET (2003), Professional Edition
 * Microsoft Visual Studio .NET (2003), Academic Edition
 * Microsoft Visual Studio .NET (2003), Enterprise Architect Edition
 * Microsoft Visual Studio .NET (2003), Enterprise Developer Edition
 * Microsoft Visual Studio .NET (2003), Trial Edition

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SYMPTOMS
When you try to build a solution in Microsoft Visual Studio .NET 2003, you receive the following error message:

Reference required to assembly ' ' containing the type ' '. Add one to your project.

The placeholder  is the name of the class.



CAUSE
This problem occurs when you have a very large solution that contains both file references and project references in Visual Studio .NET 2003.



RESOLUTION
A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Visual Studio .NET 2003 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:

http://support.microsoft.com/default.aspx?scid=fh;%5BLN%5D;CNTACTMS

Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites
No prerequisites are required.

Restart requirement
You do not have to restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in coordinated universal time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time tool in Control Panel.   Date         Time   Version            Size    File name --  24-May-2004  23:50  7.10.4145.0       598,016  Bcaut.dll 25-May-2004 04:24  7.10.4145.0     1,437,696  Msvb7.dll



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section.



MORE INFORMATION
For additional information about Team development in Visual Studio .NET, visit the following Microsoft Developer Network (MSDN) Web site:

http://msdn.microsoft.com/library/default.asp?url=/library/en-us/dnbda/html/tdlg_rm.asp

For additional information about the standard terminology that is used to describe Microsoft software updates, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

Additional query words: DLL copylocal

Keywords: kbVSNET2003preSP1fix kbBug kbfix kbQFE kbprb KB841646

Technology: kbAudDeveloper kbEIF kbVSNET2003Ac kbVSNET2003EntArc kbVSNET2003EntDev kbVSNET2003Pro kbVSNET2003Search kbVSNET2003Trial kbVSNETSearch kbVSsearch

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