Unsupported EDB file format for linking with ETABS 2018

Hi, instead of exporting entire model and analysis data and use it directly on RCDC, I decided to use the method specified in documentation for ETABS 15 & 16 and I got this error. I even copied the ETABS tlb and dll files in root directory of installation and it still wouldn't work. Have you added support for ETABS  18? If yes, please tell me the procedure.