You coded a SUM, SOURCE, or VALUE clause for which there is no
matching picture in the mock-up. Possibly, you did not delete a SOURCE clause
that you no longer reference in the mock-up. Or possibly, MOCKUP line
statements do not accurately match the lines specified for each group in the
mock-up.
Restriction: This topic applies only when the AppMaster Builder AddPack has been installed, and applies only to Windows platforms.