希望在主菜單中添加maple12啟動項，可是對著啟動菜單點擊右鍵的Edit menus后沒有反應，從System->Preferences->Main Menu啟動也沒有反應，后來嘗試從終端啟動alacarte，卻彈出一大堆錯誤提示：An error occurred while loading or saving configuration information for alacarte. Some of your configuration settings may not work properly.
Failed to contact configuration server; some possible causes are that you need to enable TCP/IP networking for ORBit, or you have stale NFS locks due to a system crash. See http://www.gnome.org/projects/gconf/ for information. (Details -  1: Failed to get connection to session: Did not receive a reply. Possible causes include: the remote application did not send a reply, the message bus security policy blocked the reply, the reply timeout expired, or the network connection was broken.)
在網上找了半天，終于知道如何糾正了：
1，cd ~，進入 用戶主目錄
2，cd .config/menus
3, sudo rm -rf *
就可以了
這個問題的出現，
http://forum.ubuntu.org.cn/viewtopic.php?f=80&t=129568
處說是因為：
      .config/menus下的applications.menu以及settings.menu兩個文件的內容被清空了，至于為什么會被清空，我就不知道了。
將.config/menus目錄下的文件都刪除后，系統（可能是gnome）找不到這兩個配置文件，它會重新生成這兩個配置文件
，并把內容設置成與/etc/xdg/menus下的對應文件相同的內容。關于這個，可以查看一下兩個目錄的applications.menu以及
settings.menu的內容。

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