怎么我的.xsession-errors里这么多错误?

今天看了一下，发现错误还不少，这都是些什么错误啊?
/etc/gdm/Xsession: Beginning session setup...
/etc/gdm/Xsession: ssh-agent not found!
/etc/gdm/Xsession: Setup done, will execute: gnome-session
GNOME_KEYRING_SOCKET=/tmp/keyring-FObnFj/socket
SSH_AUTH_SOCK=/tmp/keyring-FObnFj/socket.ssh

(gnome-settings-daemon:2037): GLib-GObject-CRITICAL **: g_param_spec_flags: assertion `G_TYPE_IS_FLAGS (flags_type)' failed

(gnome-settings-daemon:2037): GLib-GObject-CRITICAL **: g_object_class_install_property: assertion `G_IS_PARAM_SPEC (pspec)' failed
gnome-session[2004]: WARNING: Application 'compiz.desktop' failed to register before timeout

(polkit-gnome-authentication-agent-1:2076): GLib-GObject-WARNING **: cannot register existing type `_PolkitError'

(polkit-gnome-authentication-agent-1:2076): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
无法打开面板启动器的 desktop 文件 evolution.desktop
** Message: Initializing gksu extension...
Initializing nautilus-open-terminal extension
Conky: desktop window (18000c0) is subwindow of root window (142)
Conky: window type - override
Conky: drawing to created window (0x1600001)
Conky: drawing to double buffer
** (epiphany:2176): DEBUG: Importing bookmarks of type text/html
aup timeline: aup.init() called (first event)
aup timeline: calling prefs.init() (89)
aup timeline: calling filterStore.loadFromDisk() (2)
aup timeline: * loaded from disk (188)
aup timeline: * called subscription observers (reload) (42)
aup timeline: calling policy.init() (1)
aup timeline: aup.init() done (0)
** (epiphany:2176): DEBUG: Importing bookmarks of type text/html
** (epiphany:2176): DEBUG: Importing bookmarks of type text/plain
aup timeline: aup.init() called (first event)
aup timeline: calling prefs.init() (19)
aup timeline: calling filterStore.loadFromDisk() (2)
aup timeline: * loaded from disk (112)
aup timeline: * called subscription observers (reload) (41)
aup timeline: calling policy.init() (1)
aup timeline: aup.init() done (0)
aup timeline: aup.init() called (first event)
aup timeline: calling prefs.init() (19)
aup timeline: calling filterStore.loadFromDisk() (2)
aup timeline: * loaded from disk (110)
aup timeline: * called subscription observers (reload) (41)
aup timeline: calling policy.init() (0)
aup timeline: aup.init() done (1)

不用dm就没这么多错误了～～～

意思是都是正常的咯，没事就行了