Comment 9 for bug 1575351

Similar bug posted on http://askubuntu.com/q/855522/135465.

Here is the error I get trying to open ubuntu-software (which points to gnome-software):

$ ubuntu-software

(ubuntu-software:6610): Gs-WARNING **: Failed to create permission org.freedesktop.packagekit.trigger-offline-update: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Action org.freedesktop.packagekit.trigger-offline-update is not registered

(ubuntu-software:6610): Gs-WARNING **: Failed to create permission org.freedesktop.packagekit.trigger-offline-update: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Action org.freedesktop.packagekit.trigger-offline-update is not registered

(ubuntu-software:6610): Gs-WARNING **: Failed to create permission org.freedesktop.packagekit.trigger-offline-update: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Action org.freedesktop.packagekit.trigger-offline-update is not registered

(ubuntu-software:6610): Gs-WARNING **: Failed to create permission org.freedesktop.packagekit.trigger-offline-update: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Action org.freedesktop.packagekit.trigger-offline-update is not registered

(ubuntu-software:6610): Gs-WARNING **: Failed to create permission org.freedesktop.packagekit.trigger-offline-update: GDBus.Error:org.freedesktop.PolicyKit1.Error.Failed: Action org.freedesktop.packagekit.trigger-offline-update is not registered

(ubuntu-software:6610): GLib-CRITICAL **: g_dir_read_name: assertion 'dir != NULL' failed

(ubuntu-software:6610): Gtk-WARNING **: Error loading image 'file:///usr/share/gnome-software/featured-inkscape.png': Error opening file: Too many open files

(ubuntu-software:6610): GLib-ERROR **: Creating pipes for GWakeup: Too many open files

Trace/breakpoint trap (core dumped)