The explanation for this error message is quite simple: you have upgraded to
a version of the SDL suite which does not support the particular property
anymore. There are some components (i.e. TRChart, or TReportListView) which offer better replacements for previous properties discarding the old ones. The problem is that the DFM files of your project still contain the old property definitions. These definitions are compiled into your executable without problems (they are not checked
for correctness during compilation), however, when you start the executable
these unrecognized properties will generate the above mentioned error message.
In order to solve the problem, you have simply to open all forms in
the IDE which contain the component showing this error. The IDE will complain
about the missing property and ask you what to do. Select "ignore" and save the
unit after it has been loaded. At this point the old "missing" properties will
be discarded and the new ones will be included into the DFM file. Now recompile the
program - that's it.