由于我已经安装了 arch，因此我通过 pacman -S gnome gnome-extra 安装了 gnome。安装后我重新启动。我已成功以 root 身份登录。一切似乎都正常，但事实是 gnome-control-center user-accounts 无法启动。我必须注意到，gnome-control-center 的所有其他选项都运行良好！！！gnome-control-center user-accounts 提供以下信息：
root:~ # gnome-control-center user-accounts
(gnome-control-center:20884): Gtk-CRITICAL **: gtk_entry_set_text: assertion 'text != NULL' failed
(gnome-control-center:20884): AccountsService-CRITICAL **: act_user_set_language: assertion 'ACCOUNTS_IS_USER (user->accounts_proxy)' failed
Segmentation fault (core dumped)
使用详细模式：
root:~ # gnome-control-center -v user-accounts
** (gnome-control-center:20924): DEBUG: Enabling debugging
** (gnome-control-center:20924): DEBUG: No extra argument
(gnome-control-center:20924): GdkPixbuf-DEBUG: gdk_pixbuf_from_pixdata() called on:
(gnome-control-center:20924): GdkPixbuf-DEBUG: Encoding raw
(gnome-control-center:20924): GdkPixbuf-DEBUG: Dimensions: 14 x 14
(gnome-control-center:20924): GdkPixbuf-DEBUG: Rowstride: 56, Length: 808
(gnome-control-center:20924): GdkPixbuf-DEBUG: Copy pixels == false
(gnome-control-center:20924): GdkPixbuf-DEBUG: gdk_pixbuf_from_pixdata() called on:
(gnome-control-center:20924): GdkPixbuf-DEBUG: Encoding raw
(gnome-control-center:20924): GdkPixbuf-DEBUG: Dimensions: 14 x 14
(gnome-control-center:20924): GdkPixbuf-DEBUG: Rowstride: 56, Length: 808
(gnome-control-center:20924): GdkPixbuf-DEBUG: Copy pixels == false
(gnome-control-center:20924): GdkPixbuf-DEBUG: gdk_pixbuf_from_pixdata() called on:
(gnome-control-center:20924): GdkPixbuf-DEBUG: Encoding raw
(gnome-control-center:20924): GdkPixbuf-DEBUG: Dimensions: 14 x 14
(gnome-control-center:20924): GdkPixbuf-DEBUG: Rowstride: 56, Length: 808
(gnome-control-center:20924): GdkPixbuf-DEBUG: Copy pixels == false
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: calling 'ListCachedUsers'
(gnome-control-center:20924): AccountsService-DEBUG: Failed to identify the current session: No such device or address
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: seat unloaded, so trying to set loaded property
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: Listing cached users, so not setting loaded property
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: Listing cached users, so not setting loaded property
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: ListCachedUsers finished with empty list, maybe setting loaded property now
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: Seat wouldn't load, so giving up on it and setting loaded property
(gnome-control-center:20924): user-accounts-cc-panel-DEBUG: Got 0 users
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: trying to track new user with uid 0
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: finding user with id 0 state 1
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: finding user with id 0 state 2
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: Looking for user with id 0 in accounts service
(gnome-control-center:20924): Gtk-CRITICAL **: gtk_entry_set_text: assertion 'text != NULL' failed
(gnome-control-center:20924): AccountsService-CRITICAL **: act_user_set_language: assertion 'ACCOUNTS_IS_USER (user->accounts_proxy)' failed
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: trying to track new user with uid 0
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: finding user with id 0 state 1
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: finding user with id 0 state 2
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: Looking for user with id 0 in accounts service
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: unrefing manager owned by finished ListCachedUsers call
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: Found object path of user with id 0: /org/freedesktop/Accounts/User0
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: finding user with id 0 state 3
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: user with id 0 fetched
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: finished handling request for user with id 0
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: unrefing manager owned by fetch user request
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: Found object path of user with id 0: /org/freedesktop/Accounts/User0
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: finding user with id 0 state 3
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: user with id 0 fetched
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: finished handling request for user with id 0
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: unrefing manager owned by fetch user request
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: user root is now loaded
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: user root was not yet known, adding it
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: tracking user 'root'
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: loaded, so emitting user-added signal
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: no pending users, trying to set loaded property
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: already loaded, so not setting loaded property
(gnome-control-center:20924): AccountsService-DEBUG: ActUserManager: sending user-changed signal for user root
(gnome-control-center:20924): user-accounts-cc-panel-DEBUG: Got 0 users
Segmentation fault (core dumped)