Try to open database as a table (use ...dbc), go to object 316 and observe it's properties in the record.
You may also send to me your dbc, dcx and dct files to review.
>
> I got an error called "Object # 316; Relation (Relation 1) failed; missing property" while I used Validate Database command. how can I fix this? I can't open *.DBC file anymore due to this problem. Can anyone every faced this problem before?
>
> Thanks
> J.