FIX: Error message when you compile an ASP.NET project that contains many application resource files: "A first chance exception of type 'System.ArgumentException' occurred in mscorlib.dll"

You have a Microsoft ASP.NET project that contains many application resources (.resx) files. The file names do not include a language and a culture between ".aspx" and ".resx."

For example, you have pages that are named AspxPageKeyXX.aspx. You also have .resx files in the App_LocalResources folder that are named AspxPageKeyXX.aspx.resx. These files are instead of or in addition to the .resx files that include a culture identifier (for example, AspxPageKey400.aspx.ru.resx).

You experience the following problems when the computer is running Microsoft .NET Framework 2.0 Service Pack 2 (SP2):

• When you compile the project, it makes much longer than when the file names include a culture.
• When you run the project, you receive the following error message in the output window many times:
  A first chance exception of type 'System.ArgumentException' occurred in mscorlib.dll
  Note The exception is reported when the Show output from option is set to Debug.

Windows XP and Windows Server 2003

To resolve this problem in Windows XP and in Windows Server 2003, apply the hotfix rollup package that is described in Microsoft Knowledge Base article 969612. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Windows Vista and Windows Server 2008

To resolve this problem in Windows Vista and in Windows Server 2008, download and apply the hotfix that is described in Microsoft Knowledge Base article 967535. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

For more information, click the following article number to view the article in the Microsoft Knowledge Base: