FIX: C0000005 Fatal Error During Build w/ Invalid Preprocessors (221744)

SYMPTOMS

Building a project that contains an invalid preprocessor directive causes an error. Depending on the version of Visual FoxPro being used, one of the following error messages appears:

Visual FoxPro 3.x for Windows displays a message box with the following message:

Internal Consistency Error

Visual FoxPro 3.0b for Macintosh displays a message box with the following message:

The application "Microsoft Visual FoxPro" has unexpectedly quit, because an error of type 2 occurred.

Depending on the version of Windows, Visual FoxPro 5.x and Visual FoxPro 6.0 display one of the following messages:

Under Windows 9x:

This program has performed an illegal operation and will be shut down.

Under Windows NT 4.0:

An application error has occurred and an application errorlog is being generated.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

This bug was corrected in Visual Studio 6.0 Service Pack 3.

For more information about Visual Studio service packs, please see the following articles in the Microsoft Knowledge Base:

194022 INFO: Visual Studio 6.0 Service Packs, What, Where, Why

194295 HOWTO: Tell That Visual Studio 6.0 Service Packs Are Installed

MORE INFORMATION

This behavior occurs when a preprocessor directive references an object that is read-only.

Steps to Reproduce Behavior

Create a new project.

Add a new main prg using the following code:

#UNDEF _DEBUG
#IF Application.ActiveProject.Debug
   #DEFINE _DEBUG
#ENDIF

Build an application from the project.