法一:
gksudo gedit /usr/share/software-center/softwarecenter/ui/gtk3/views/lobbyview.py
注释下面这句话(注释使用#号)
self.exhibit_banner.set_exhibits([FeaturedExhibit()])
法二:
依次运行下面三条命令:
sudo apt-get update
sudo apt-get dist-upgrade
sudo apt-get install --reinstall software-center