Hi Chris, I tried more about this and also read about the debugging process. But it appears that this error is even before I can set up debuging. I also noticed that when I try the same process up to page 31 on my home computer (I do have a licensed PC SAS and SAS EG from Drexel University where I teach SAS for many years. The license was expired, but SAS EG frame still start, even though I can not run any SAS code, it can still test the frame display. We switch to SAS Studio for Academic this year.), up to page 31 example Figure 3.2, everything is working. But when I do the same on my company's computer, it gives me the error as shown in above Feb. 25 message shown. When I click the MSDN Help link, it suggest: Move the class code so that it is the first class in the file. then load the designer again. Not sure how to do that. I am not sure if this is enough information for you to give some hint and advise. By the way, I saw you have an training in Dallas, TX on 4/30-5/1. If I can bring my computer to the training, do you think this is an issue can be resolved? Thanks! Yihong
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