hi.everybody. I want to make a program about communicating with plc, so i select using libnodave, i think it will be easy. but when i install it, I think i am wrong. 1¡¢"Component"->"install component"->"Browse.."->"nodavecomponent.pas",it show me "File not found'Nodave.dcu'; but if i copy it from libnodave-0.74, it show me some undeclared identifier. who can help me?