If you get the error message TableData 9651 does not exist when you compile a report object in NAV, you must check your NAV Compatibility option. This message means that your object was created for another version of NAV, where the table 9651 Report Layout Selection exists.
In the ForNAV Designer and Converter, there is an option called NAV Compatibility. All you need to do is set this option to the NAV version that matches your NAV installation, and then convert or save your object again.