所以我使用以下命令安装了GNS3-gui：
sudo add-apt-repository ppa:gns3/ppa
sudo apt-get update
sudo apt-get install gns3-gui
Evertime我开始使用该软件：
Fatal Python error: Segmentation fault
Current thread 0x00007fc04cb4e700 (most recent call first):
File "/usr/share/gns3/gns3-gui/lib/python3.5/site-packages/gns3/main.py", line 294 in main
File "/usr/bin/gns3", line 9 in <module>
Segmentation fault (core dumped)