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Q216087: PRB: Err "Unable to find Visual Class Library"

Article: Q216087
Product(s): Microsoft FoxPro
Version(s): WINDOWS:6.0
Operating System(s): 
Keyword(s): kbvfp600bug kbFFC
Last Modified: 10-FEB-1999

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The information in this article applies to:

- Microsoft Visual FoxPro for Windows, version 6.0 
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SYMPTOMS
========

If the _Utility Visual class library is added to a project, the following error
message displays when the project is built:

  Unable to find Visual Class Library.

CAUSE
=====

The _xtab Visual class in the _Utility Visual class library contains some method
code that uses the NEWOBJECT() function to create a new class from the _GENXTAB
system variable. The _GENXTAB system memory variable is referencing the
Vfpxtab.prg program file.

RESOLUTION
==========

Open the _xtab Visual class in the _Utility Visual class library, which is
located in the \FFC folder. Once the _xtab class is open, open the Runxtab
method. Change the following line of code:

  oNewXtab=NEWOBJECT('genxtab',(_GENXTAB),"",;

Replace the _GENXTAB to point directly to the VFPXTAB program. For example:

  oNewXtab=NEWOBJECT('genxtab',"Home()+"vfpxtab.prg","",;

MORE INFORMATION
================

If you choose the Ignore or Ignore all options from the error message, the
project continues to build. If you choose the Locate option and add any Visual
class library to the project, whether it is the correct Visual class library or
not, it will be added without being checked if it already exists in the project.
Therefore, you could end up with multiple instances of the Visual class library
in the project, and it does not prevent the error from occurring on the next
build.

Steps to Reproduce the Error

1. Create a new project, add a form and then modify the form.

2. From the Tools menu, choose Component Gallery.

3. Locate and open the Foundation Classes folder.

4. Open the Automation folder and add the Graph by Record class to the form.

5. Save and close the form.

6. Build the project.

REFERENCES
==========

(c) Microsoft Corporation 1999, All Rights Reserved. Contributions by Dean
Christopher, Microsoft Corporation.


Additional query words:

======================================================================
Keywords          : kbvfp600bug kbFFC 
Technology        : kbVFPsearch kbAudDeveloper kbVFP600
Version           : WINDOWS:6.0
Issue type        : kbprb
Solution Type     : kbpending

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