Project item is not a Visual Basic 6.0 file
The referenced item does not match any known Visual Basic 6.0 file format and cannot be upgraded. It may not be a Visual Basic 6.0 file, it may be from an older version of Visual Basic, or it may have the wrong file extension (for example, a .bas module with an .frm extension).
What to do next
Make sure that the project can be successfully compiled and run using Visual Basic 6.0 on the upgrade computer.