The referenced project is either not compiled or out-of-date
The project that you are attempting to upgrade has a reference to an ActiveX EXE or ActiveX DLL project. The output of that project must be loaded in order for the upgrade to proceed. Either the referenced project has not been compiled, or the compiled output is missing.
What to do next
- Compile the referenced project in Visual Basic 6.0 by choosing Make Projectname from the File menu.