I got this error message in the logfile when i was trying to migrate my PVSS project 3.9 to WINCC OA 3.11
help me to understand what is the problem.
how to solve it?

here is the error message.
convertDb:-------------------------------------------------------------
convertDb:WCCOAtoolConvertDb(1), 2013.01.07 17:32:55.467: "3.9" does not match with manager version: "3.11" !!
convertDb:set PVSS_II=/kundenprojekt/Motor_test/Motor_test/config/config
convertDb:[2013.01.07;17:32:55:481 ] /opt/WinCC_OA/3.11/dbdfiles/version_3.11/PVSStoolConvertDb -proj Motor_test -printSystem
convertDb:[2013.01.07;17:32:55:481 ] LD_LIBRARY_PATH = "/opt/WinCC_OA/3.11/bin::/usr/local/lib:/usr/sfw/lib"
convertDb:/opt/WinCC_OA/3.11/dbdfiles/version_3.11/PVSStoolConvertDb: error while loading shared libraries: libManagerV39_303.so: cannot open shared object file: No such file or directory
convertDb:WCCOAtoolConvertDb(1), 2013.01.07 17:32:55.484, SYS, WARNING, 54, Unexpected state, DoConvertDb, doConvert, Unable to determine system id from DB - Command: "/opt/WinCC_OA/3.11/dbdfiles/version_3.11/PVSStoolConvertDb -proj Motor_test -printSystem " failed!, exitCode: 127
convertDb:WCCOAtoolConvertDb(1), 2013.01.07 17:32:55.484,DBG,-------------------------------------------------------
convertDb:-------------------------------------------------------
convertDb:WCCOAtoolConvertDb(1), 2013.01.07 17:32:55.485,DBG,DB conversion error. Aborted!
convertDb:DB conversion error (-1). Aborted at: 2013.01.07;17:32:55:484
