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Cannot open Home folder Ubuntu or Any folder in Ubuntu

 

I have Ubuntu 16.04 installed with home folder mounted as a separate partition.

 

When I click on the icon of the Home folder (or any folder from Places tab), the icon flashes trying to open and will close.

 

Checked the dmesg and found these error messages.

 

(nautilus:25179): GLib-GIO-CRITICAL **: g_dbus_interface_skeleton_unexport: assertion 'interface_->priv->connections != NULL' failed
(nautilus:25179): GLib-GIO-CRITICAL **: g_dbus_interface_skeleton_unexport: assertion 'interface_->priv->connections != NULL' failed
Could not register the application: Timeout was reached
(nautilus:25179): Gtk-CRITICAL **: gtk_icon_theme_get_for_screen: assertion 'GDK_IS_SCREEN (screen)' failed
(nautilus:25179): GLib-GObject-WARNING **: invalid (NULL) pointer instance
(nautilus:25179): GLib-GObject-CRITICAL **: g_signal_connect_object: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

 

So nautilus is not opening up, it crashes. To restart nautilus properly, I did the following:

 

ps aux | grep nautilus

 

Killed all processes.

sudo kill PIDNUMBER

 

Started it again.

nautilus -q

 

This fixed the errors and the folders were opened successfully.