我以前用WINCC5。0 SP2做了一个项目，现在装了WINCC6。0 SP3但不能打开原来的项目，用项目移植后，就不能打开原来的文件了，不知是什么原因？
有如下错误
提示：PROJECT NAME: E:\LDK\ZAOQI\wincc\ldgwincc\ZSPROJECT.MCP

PROJECT TYPE: single user

MIGRATION OBJECTS:
pictures and libraries
CS data

START TIME: 2007-08-28 16:52:39

ERROR: Error while opening WinCC project. hr=0x80070002 --> CS AlarmLogging could not be updated.
ERROR: Error while closing WinCC project.
FINISH TIME: 2007-08-28 16:53:03

Migration succeeded.