ECO怎么没有记录

如下的ECO。我改了几个元件的封装，怎么ECO文件里面没有记录?谢谢！

** ECO In Report **

Fri Jun 13 12:27:11 2008

Input  File : D:\Program Files\PADS Projects\eco2pcb.eco
Current Job : Untitled

Line 14 , Section *DEL_ATTRIBUTE*
"Comment"
* WARNING: Processing command to delete attribute "Comment" from Component UU1.
*          The attribute is also inherited from Decal QFN5X5-32.
*          The change is not fully reconciled for cases where the schematic
*          does not support hierarchical attributes.

谢谢，自己顶一下！

今天又试一试了，发现ECO的这个eco.err记事本文件里面怎么还是没有我修改和增添了的元件的ECO记录?如下内容：

** ECO In Report **

Sat Jun 14 09:43:55 2008

Input  File : D:\Program Files\PADS Projects\eco2pcb.eco
Current Job : Untitled

No errors found

Attribute Dictionary was modified during import operations.?The following
attributes were added to the Attribute Dictionary as non-ECO Registered:

Sim.Analog.Model
Sim.Analog.Order
Sim.Analog.Prefix
Part Number
Manufacturer #1
Voltage Rating

再顶一下！