adop prepared phase is completing with error

Hello,

We are getting error while running adop phase=prepare.

Below is the error msg.

==========

    [EVENT]     [END   2014/08/02 01:31:06] Check and create Patch Edition (if required)
      [EVENT]     [START 2014/08/02 01:31:06] Performing steps to synchronise the FS
            [ERROR]     Failed to execute sql statement :
      begin
        ad_zd_seed.prepare('FND_PROFILE_OPTION_VALUES');
        ad_zd_seed.prepare('WF_RESOURCES');
        ad_zd_seed.prepare('IBY_BEPINFO');
      end;

            [ERROR]     Invalid connect string - cannot connect to database
Invalid Connect string - cannot connect to database
ERROR:
ORA-12514: TNS:listener does not currently know of service requested in connect
descriptor
Invalid connect string - cannot connect to database
Invalid Connect string - cannot connect to database