(lightdm-gtk2-greeter:2541): GLib-CRITICAL **: g_shell_parse_argv: assertion 'command_line != NULL' failed

** (lightdm-gtk2-greeter:2541): WARNING **: Failed to open sessions directory: Error opening directory '/usr/share/lightdm/sessions': No such file or directory

** (lightdm-gtk2-greeter:2541): WARNING **: Failed to load user image: Failed to open file '/home/test/.face': No such file or directory

** (lightdm-gtk2-greeter:2541): WARNING **: Could not get accounts property XKeyboardLayouts

** (lightdm-gtk2-greeter:2541): WARNING **: Could not get accounts property XHasMessages

(lightdm-gtk2-greeter:2541): GLib-CRITICAL **: g_variant_get_type: assertion 'value != NULL' failed

(lightdm-gtk2-greeter:2541): GLib-CRITICAL **: g_variant_type_is_subtype_of: assertion 'g_variant_type_check (type)' failed

(lightdm-gtk2-greeter:2541): GLib-CRITICAL **: g_variant_get_type_string: assertion 'value != NULL' failed

** (lightdm-gtk2-greeter:2541): WARNING **: Unexpected accounts property type for XHasMessages: (null)

(lightdm-gtk2-greeter:2541): GLib-CRITICAL **: g_variant_unref: assertion 'value != NULL' failed

** (lightdm-gtk2-greeter:2541): WARNING **: Could not get accounts property XKeyboardLayouts

** (lightdm-gtk2-greeter:2541): WARNING **: Could not get accounts property XHasMessages

(lightdm-gtk2-greeter:2541): GLib-CRITICAL **: g_variant_get_type: assertion 'value != NULL' failed

(lightdm-gtk2-greeter:2541): GLib-CRITICAL **: g_variant_type_is_subtype_of: assertion 'g_variant_type_check (type)' failed

(lightdm-gtk2-greeter:2541): GLib-CRITICAL **: g_variant_get_type_string: assertion 'value != NULL' failed

** (lightdm-gtk2-greeter:2541): WARNING **: Unexpected accounts property type for XHasMessages: (null)

(lightdm-gtk2-greeter:2541): GLib-CRITICAL **: g_variant_unref: assertion 'value != NULL' failed