我已经安装了 11.04 64 位版本，现在我无法安装 Draftsight（带有强制架构选项的 32 位），因为库 libexpat1 存在错误。有人知道如何解决吗？
andrea@andrea-HP-Pavilion-dv5-Notebook-PC:~$ sudo dpkg --force-architecture -i DraftSight.deb
[sudo] password for andrea:
dpkg: warning: the following problems are ignored via the --force option:
the architecture of the package (i386) does not match system (amd64)
dpkg: problems with pre-dependencies DraftSight.deb containing dassault-systemes-draftsight:i386:
dassault-systemes-draftsight:i386 depends on libexpat1 (>= 2.0.1-4)
dpkg: errore processing DraftSight.deb (--install):
dependency problem - dassault-systemes-draftsight:i386 not installed
There were errors in processing:
DraftSight.deb
andrea@andrea-HP-Pavilion-dv5-Notebook-PC:~$
编者注：错误信息已经过翻译，与真实的不完全一致。