ORA-26705: cannot downgrade capture process after Streams data dictionary has been upgraded
Cause: An attempt was made to downgrade a capture process after it has upgraded the GoldenGate, XStream or Streams data dictionary.
Action: Drop the capture process before attempting the downgrade.
ORA-26705：是Oracle数据库错误码。在尝试降级捕获进程（capture process）时Payload所使用的Streams数据字典（data dictionary）已经被升级时会显示此错误信息。