Microsoft KB Archive/171520: Difference between revisions
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"<Function Name | "<Function Name> in the <Class Name> class module has arguments<br /> | ||
and/or a return type that is incompatible with a similar declaration<br /> | and/or a return type that is incompatible with a similar declaration<br /> | ||
in the version-compatible component.<br /> | in the version-compatible component.<br /> | ||
<br /> | <br /> | ||
If you choose Accept, the <Class Name | If you choose Accept, the <Class Name> class module will no longer support client applications compiled against the version-compatible component. To avoid this incompatibility, edit the declaration to be compatible, or clear the version compatibility setting in Project Options." | ||
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Revision as of 20:45, 20 July 2020
Article ID: 171520
Article Last Modified on 12/10/2003
APPLIES TO
- Microsoft Visual Basic 5.0 Control Creation Edition
- Microsoft Visual Basic 5.0 Learning Edition
- Microsoft Visual Basic 5.0 Professional Edition
- Microsoft Visual Basic 5.0 Enterprise Edition
This article was previously published under Q171520
SYMPTOMS
After compiling a .dll for the first time and setting the project to binary compatibility, further attempts to compile may result in the following error message:
CAUSE
This problem occurs in large, complex applications that contain circular references. For example, a function in one class module references another class module as follows:
Public Function DoSomething(param1, param2, param3) as MyOtherClass
where MyOtherClass is another class in the same project, and MyOtherClass contains a UDT which references back to the first module.
A simple repro case is not available as this behavior tends to occur only in large, complex projects.
STATUS
Microsoft has confirmed this to be a bug in the Microsoft products listed at the beginning of this article. This bug has been fixed in Visual Studio 97 Service Pack 2.
For more information on the Visual Studio 97 Service Pack 2, please see the following article in the Microsoft Knowledge Base:
170365 : INFO: Visual Studio 97 Service Packs - What, Where, and Why
For a list of the Visual Basic 5.0 bugs that were fixed in the Visual Studio 97 Service Pack 2, please see the following article in the Microsoft Knowledge Base:
171554 : INFO: Visual Basic 5.0 Fixes in Visual Studio 97 Service Pack 2
MORE INFORMATION
This problem occurs when a function in one class module references another class module, and the second class module's Instancing property is set to "2 - PublicNotCreatable." For example, the function in the first class module could be:
Public Function DoSomething(param1, param2, param3) as MyOtherClass
If MyOtherClass is another class module with Instancing set to "2," the problem occurs.
Keywords: kbbug kbfix kbvbp500sp2fix kbvs97sp2fix KB171520