VirtualBox: supR3HardenedMainGetTrustedMain: dlopen("/usr/lib/virtualbox/VirtualBox.so",) failed: libQtCore.so.4: cannot open shared object file: No such file or directory
ArchLinux 下 virtualbox 报错 libQtCore.so.4: cannot open shared object file
原文：http://www.cnblogs.com/itxdm/p/5631418.html