I have just learned how to troubleshoot a report. I opened the report by Modify Report and then deleted ALL fields and ALL labels in this report. As I was deleting them, I would test by Print Preview. I was getting the error until I deleted the very last label. Now, it works, no error, and nothing on the page <g>.
"The creative process is nothing but a series of crises." Isaac Bashevis Singer
"My experience is that as soon as people are old enough to know better, they don't know anything at all." Oscar Wilde
"If a nation values anything more than freedom, it will lose its freedom; and the irony of it is that if it is comfort or money that it values more, it will lose that too." W.Somerset Maugham