Microsoft KB Archive/928103

= FIX: Error message when you build a Visual C++ 2005 project in Visual Studio 2005: &quot;1>ResGen error RG0000 The file named '' does not have a known extension&quot; =

Article ID: 928103

Article Last Modified on 11/19/2007

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APPLIES TO


 * Microsoft Visual Studio 2005 Team Edition for Software Architects
 * Microsoft Visual Studio 2005 Team Edition for Software Developers
 * Microsoft Visual Studio 2005 Team Edition for Software Testers
 * Microsoft Visual Studio 2005 Team Edition for Database Professionals
 * Microsoft Visual Studio 2005 Standard Edition
 * Microsoft Visual Studio 2005 Professional Edition
 * Microsoft Visual Studio 2005 Express Edition

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SYMPTOMS
When you build a Microsoft Visual C++ 2005 project in Microsoft Visual Studio 2005, you may receive the following error message:

1>ResGen : error RG0000: The file named &quot; &quot; does not have a known extension. Managed resource files must end in .ResX, .txt, or .resources.

This problem occurs if the following conditions are true:
 * The Visual C++ 2005 project uses resources.
 * The paths of the resources are long.



CAUSE
This problem occurs because Visual Studio 2005 uses a command for the Resource File Generator (Resgen.exe) that is more than 32,000 characters. In this case, the command is truncated to 32,000 characters. Therefore, the Resource File Generator reads the truncated command.



Hotfix information
A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that is described in this article. Apply it only 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 2005 service pack that contains this hotfix.

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

http://support.microsoft.com/contactus/?ws=support

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.

Note If you have Microsoft Visual Studio 2005 Service Pack 1 installed, install the hotfix that is described in the following Microsoft Knowledge Base article to resolve this problem:

932372 FIX: Visual Studio 2005 may stop unexpectedly when you try to close the current solution or to exit the Visual Studio IDE

Prerequisites
You must have Microsoft Visual Studio 2005 installed to apply this hotfix.

Restart requirement
You do not have to restart the 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 item in Control Panel.

Visual Studio 2005, Itanium-based versions


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 more information, 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

Keywords: kbexpertiseadvanced kbhotfixserver kbqfe kbpubtypekc KB928103

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