MongoDB的客户端robo3t在，Ubuntu 16.04中启动时报一个QT的错误：
This application failed to start because it could not find or load the Qt platform plugin "xcb"
in "".
Available platform plugins are: xcb.
Reinstalling the application may fix this problem.
Aborted (core dumped)
【解决方法】
1 mkdir ~/robo-backup
2 mv robo3t-1.1.1-linux-x86_64-c93c6b0/lib/libstdc++* ~/robo-backup/
3 robo3t-1.1.1-linux-x86_64-c93c6b0/bin/robo3t
参考自：
https://www.cnblogs.com/hexin0614/p/7487191.html