有人用beagle吗，我的beagle启动后总是会自动停止

waterloo2005

下面是beagled --fg --debug的输出最后几行输出

Debug: Delaying add of file:///media/bak/oo/FILE/computational_statistics_handbook_with_matlab-Martinez_Martinez.zip until FSQ comes across it
Debug: Delaying add of file:///media/bak/oo/FILE/?±??????×????亯??_??????.rar until FSQ comes across it
Debug: Delaying add of file:///media/bak/oo/FILE/?±??????×????亯??_?????.rar until FSQ comes across it
Debug: Delaying add of file:///media/bak/oo/FILE/?±??????×????_???·?????í.rar until FSQ comes across it
Debug: Delaying add of file:///media/bak/oo/FILE/??n?¤????????ì???·.chm until FSQ comes across it
**
ERROR:strenc.c:193:mono_unicode_to_external: assertion failed: (utf8!=NULL)
Aborted
这是怎么回事？谢谢