>>> You might compile each classlib using
>>> COMPILE CLASSLIB filename.vcx
>
>>> try also prg's via
>>> compile fimename.prg
>
>I have tried that, all compile without error.
You can also compile forms and classes through commands.
If that doesn't work, you might try creating a new project.
Difference in opinions hath cost many millions of lives: for instance, whether flesh be bread, or bread be flesh; whether whistling be a vice or a virtue; whether it be better to kiss a post, or throw it into the fire... (from Gulliver's Travels)