[SOLVED] “undefined symbol: menu_proxy_module_load” error in GNOME applications

In all GTK apps I used to get the following warnings when run from terminal:

`menu_proxy_module_load': /usr/lib/virtualbox/VirtualBox: undefined symbol: menu_proxy_module_load
(<unknown>:23888): Gtk-WARNING **: Failed to load type module: (null)

This error was received while running Virtualbox. Though, it seems just a warning and doesn’t really change anything in the application, it does make the terminal messy. I figured I could fix the problem by simply installing appmenu-gtk.

So, run the following command to fix the issue:

sudo apt-get install appmenu-gtk


[SOLVED] VLC does not support the audio or video format “h.264” on Ubuntu

I got the following error in VLC today while trying to play some media file:

VLC does not support the audio or video format “h.264″. Unfortunately there is no way for you to fix this.”

All other media files game same error with different codec names. I couldn’t play anything in VLC. To fix the problem I installed package called libva1.

sudo apt-get install libva1