Image missing :: gtk+2.20.1

[Prasun Das <prasunthebest gmail com>]

Hi,

We have been using GTK+ 2.20.1.  We designed a window application with a toolbar.  It was found
that if the application was invoked, some the following error 
was given (images were missing in proper path) - 

mirus3g:16233): GLib-GIO-CRITICAL **: g_loadable_icon_load: assertion `G_IS_LOADABLE_ICON (icon)' failed

(mirus3g:16233): Gtk-WARNING **: Error loading theme icon 'gtk-open' for stock: Failed to load icon

(mirus3g:16233): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed

(mirus3g:16233): Gtk-CRITICAL **: gtk_default_render_icon: assertion `base_pixbuf != NULL' failed


(mirus3g:16233): Gtk-CRITICAL **: gtk_style_render_icon: assertion `pixbuf != NULL' failed

(mirus3g:16233): GLib-GObject-CRITICAL **: g_object_ref: assertion `G_IS_OBJECT (object)' failed

(mirus3g:16233): GLib-GIO-CRITICAL **: g_loadable_icon_load: assertion `G_IS_LOADABLE_ICON (icon)' failed

(mirus3g:16233): Gtk-WARNING **: Error loading theme icon 'gtk-refresh' for stock: Failed to load icon

(mirus3g:16233): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed


Please let us know if it is a known bug of GTK+ and if so, if any fix
is available or any path need to be set. 

This is a very critical issue for us. Your cooperation is highly
appreciated.

Regards,
Prasun.