Wrong repository version = 0 encountered

We Installed the business connector and did all the preliminary settings as per the manual. When we tried to do a test on the server, its giving me the error 'Wrong repository version = 0 encountered". Please advise us.
Error:

class com.sap.mw.jco.JCO$Exception
Message Wrong repository version = 0 encountered
Service sap.admin.server:getInfo

Log:
00002E [B2B-SAP.0002.0017] MapInfo failed to generate signature for rfc_function_search: com.sap.mw.jco.JCO$Exception: (108) JCO_ERROR_INTERNAL: Wrong repository version = 0 encountered