在virtualbox下安装Ubuntu后缺少nm-applet

Question

在 VirtualBox 下安装 Ubuntu 后，nm-applet 丢失了。

我已经尝试重新启动小程序，但什么也没发生。有什么建议？

$ kill nm-applet 
bash: kill: nm-applet: arguments must be process or job IDs 
$ kill 2649 
$ sudo nm-applet 


** (nm-applet:2740): WARNING **: Could not initialize NMClient /org/freedesktop/NetworkManager: The name org.freedesktop.NetworkManager was not provided by any .service files 
** Message: applet now removed from the notification area 

** (nm-applet:2740): WARNING **: Failed to register as an agent: (2) The name org.freedesktop.NetworkManager was not provided by any .service files 
** Message: using fallback from indicator to GtkStatusIcon 

(nm-applet:2740): GdkPixbuf-CRITICAL **: gdk_pixbuf_scale_simple: assertion `dest_width > 0' failed 
** Message: Starting applet secret agent because GNOME Shell disappeared 

** (nm-applet:2740): WARNING **: Failed to register as an agent: (2) The name org.freedesktop.NetworkManager was not provided by any .service files

感谢您的建议。

我已经删除network-manager和network-manager-gnome包并重新安装。此外，我安装了该软件包，network-manager-dpg但终端显然不知道该软件包network-manager。Synaptic 告诉我network-manager和network-manager-gnome都安装正确。

network-manager-dbg我使用终端成功重新安装了一个问题，但错误仍然存​​在。我无法通过 Internet 升级损坏的软件包，因为没有网络管理器连接将无法工作。

$ sudo dpkg -i ~/Downloads/network-manager-dbg_0.9.4.0-0ubuntu3_amd64.deb 
(Reading database ... 197394 files and directories currently installed.) 
Preparing to replace network-manager-dbg 0.9.4.0-0ubuntu3 (using .../network-manager-dbg_0.9.4.0-0ubuntu3_amd64.deb) ... 
Unpacking replacement network-manager-dbg ... 
Setting up network-manager-dbg (0.9.4.0-0ubuntu3) ... 
$ sudo service Network-manager start 
Network-manager: unrecognized service 
$ >

$ sudo service network-manager start 
[sudo] password for jonas: 
network-manager start/running, process 2471 
$ nm-applet 

** (nm-applet:2517): WARNING **: Could not initialize NMClient /org/freedesktop/NetworkManager: The name org.freedesktop.NetworkManager was not provided by any .service files 
** Message: applet now removed from the notification area 

** (nm-applet:2517): WARNING **: Failed to register as an agent: (2) The name org.freedesktop.NetworkManager was not provided by any .service files 
** Message: Starting applet secret agent because GNOME Shell disappeared 

** (nm-applet:2517): WARNING **: Failed to register as an agent: (2) The name org.freedesktop.NetworkManager was not provided by any .service files 
^C** Message: PID 0 (we are 2517) sent signal 2, shutting down... > 

Answer 1

看起来小程序无法与网络管理器（管理网络的服务）通信。最可能的原因是它没有运行或未安装。

如果已安装但未运行，请尝试：

sudo service network-manager start

如果未安装，您可以使用以下命令安装它：

sudo apt-get install network-manager network-manager-gnome

gnome 工具可能已经安装，但它永远不会受到伤害。

Answer 2

它又开始工作了！我让 Ubuntu 在 VirtualBox 下运行，只需将 /etc/NetworkManager 中的所有文件复制到我的实际 Ubuntu 中，它就可以再次工作了！