严重问题

Cadence Design Systems, Inc. netrev 15.2 Mon Oct 06 15:12:51 2008
(C) Copyright 2002 Cadence Design Systems, Inc.

------ Directives ------

RIPUP_ETCH FALSE;
RIPUP_SYMBOLS ALWAYS;
MISSING SYMBOL AS ERROR FALSE;
SCHEMATIC_DIRECTORY '.';
BOARD_DIRECTORY '';
OLD_BOARD_NAME 'Design2.brd';
NEW_BOARD_NAME 'Design2.brd';

CmdLine: netrev -$ -5 -i . -y 1 E:\CADENCE\#Taaaaaa03796.tmp

------ Preparing to read pst files ------


#1?? ERROR(24) File not found
???? Packager files not found

#2?? ERROR(102) Run stopped because errors were detected

netrev run on Oct 6 15:12:51 2008

?? COMPILE 'logic'
?? CHECK_PIN_NAMES OFF
?? CROSS_REFERENCE OFF
?? FEEDBACK OFF
?? INCREMENTAL OFF
?? INTERFACE_TYPE PHYSICAL
?? MAX_ERRORS 500
?? MERGE_MINIMUM 5
?? NET_NAME_CHARS '#%&()*+-./:=>?@[]^_`|'
?? NET_NAME_LENGTH 24
?? OVERSIGHTS ON
?? REPLACE_CHECK OFF
?? SINGLE_NODE_NETS ON
?? SPLIT_MINIMUM 0
?? SUPPRESS?? 20
?? WARNINGS ON

? 2 errors detected
?No oversight detected
?No warning detected

cpu time????? 0:00:06
elapsed time? 0:00:00
各位大侠:我导入网络表出现这个错误,我应该怎么办?我刚学allegro这个软件还请大家多帮忙,谢谢