oracle.forms.webutil file.filefunctions bean not found.

 Hi,

I am working with Oracle Forms 10g and have been using the webutil package successfully for about a year.  I was modifiying a form (that previously had worked properly) that uses the file open function, and when I compiled and ran it I received this error message  "oracle.forms.webutil file.filefunctions bean not found". 

I reviewed articles on the web to try to solve the issue.  I used the suggestions in the other postings on the web concerning configurations files, including jars, etc., and my envrionment appear to be correct.  (As I mentioned, I have used it for about a year successfully).