Have you by any chance tried quitting VFP and restarting it? Then you might open your project and select clean up from the tools menu. Otherwise, it's easy to create a new project, add your main program to it and then rebuild it. All (at least most) of the pieces should come along.

BTW, what version are you using?

>I had a problem in creating the executable file. I built an executable file from my project. At first, it is fine. But then, I changed the layout of one of the forms and then built it again and I got an error message saying "Invalid Project File". According to the "help", it means that my project file is corrupted. Does anyone know how I can solve this problem? Thanks in advance.
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>Chu