In case any one else runs into this, as MergeThis posted,
there is another posting if you do a search through all the forums
for RoboHelp. It basically says that Adobe is aware of it but it
doesn't affect help. Since it affects the event log in our
application and looks bad to our customers we got around it by
creating an empty file named MasterData.xml. We no longer get the
error and the help is not negatively affected.