几个星期以来，我一直在使用 Ubuntu 13.04 下的软件中心遇到问题。它在执行后几秒钟无声地崩溃。每次崩溃后，系统日志都会记录一个神秘的错误：
Oct 3 23:14:11 mattbuntu kernel: [24085.941708] traps: software-center[20640] trap int3 ip:7f9ac3880135 sp:7fffaf98bf60 error:0
从终端执行时，软件中心会发出以下错误：
[matt@mattbuntu:~]$software-center
** (software-center:4114): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-QORifKNTUU: Connection refused
2013-10-04 18:18:21,219 - softwarecenter.ui.gtk3.app - INFO - setting up proxy 'None'
2013-10-04 18:18:21,991 - softwarecenter.plugin - INFO - activating plugin '<module 'webapps_activation' from '/usr/share/software-center/softwarecenter/plugins/webapps_activation.pyc'>'
2013-10-04 18:18:22,001 - softwarecenter.fixme - WARNING - logs to the root logger: '('/usr/lib/python2.7/dist-packages/gi/importer.py', 51, 'find_module')'
2013-10-04 18:18:22,000 - root - …