Hello, VFP experts!

I got this error message when I tried to run the .EXE file I built. "Class name is invalid." There was no error during or after
compilation. I have included the classes I am using in the same folder and also set them as default in the
"Tools/Options/Controls".

I use the same method in other projects and they worked well. Does this mean that I have accidentally use a class that is
not in the same folder? or maybe some other reason.

Kindly help me. Thank you in advance.

Maybelle