我似乎无法在单击 \xe2\x80\x9cSoftware & Updates\xe2\x80\x9d 应用程序后显示它。我不知道为什么。它的图标出现在快捷方式中。激活此应用程序的终端命令是什么？
\n我尝试过这个答案：\xe2\x80\x9cSoftware Updater\xe2\x80\x9d & \xe2\x80\x9cSoftware & Updates\xe2\x80\x9d not working，但它不起作用。
\n$ uname -a\nLinux Ubuntu 5.4.0-42-generic #46~18.04.1-Ubuntu SMP Fri Jul 10 07:21:24 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux\n\n$ gnome-shell --version\nGNOME Shell 3.28.4\n\n$ software-properties-gtk\nERROR:dbus.proxies:Introspect error on :1.228:/: dbus.exceptions.DBusException: org.freedesktop.DBus.Error.NoReply: Message recipient disconnected from message bus without replying\nTraceback (most recent call last):\n File "/usr/bin/software-properties-gtk", line 100, in <module>\n app = SoftwarePropertiesGtk(datadir=options.data_dir, options=options, file=file)\n File "/usr/lib/python3/dist-packages/softwareproperties/gtk/SoftwarePropertiesGtk.py", line 173, in __init__\n self.backend.Reload();\n File "/usr/lib/python3/dist-packages/dbus/proxies.py", line 70, in __call__\n …