有空要总结一下下边的错误，下午折腾到现在。折腾死了。

倒也明白一些道理。

Fri Aug 31 01:29:28 2007 Can't call method "clean" on an undefined value at /usr/lib/perl5/site_perl/5.8.8/XML/Smart.
pm line 1098 during global destruction.
Fri Aug 31 01:29:28 2007 (in cleanup) Can't call method "clean" on an undefined value at /usr/lib/perl5/site_p
erl/5.8.8/XML/Smart.pm line 1098 during global destruction.
Fri Aug 31 01:29:28 2007 Can't call method "clean" on an undefined value at /usr/lib/perl5/site_perl/5.8.8/XML/Smart.
pm line 1098 during global destruction.
Fri Aug 31 01:29:28 2007 Can't call method "clean" on an undefined value at /usr/lib/perl5/site_perl/5.8.8/XML/Smart.
pm line 1098 during global destruction.
Fri Aug 31 01:29:28 2007 Can't call method "clean" on an undefined value at /usr/lib/perl5/site_perl/5.8.8/XML/Smart.
pm line 1098 during global destruction.
Fri Aug 31 01:29:28 2007 Can't call method "clean" on an undefined value at /usr/lib/perl5/site_perl/5.8.8/XML/Smart.
pm line 1098 during global destruction.