Weirdness with two packages.........

[Charles Schroeder <ariestao1@ipstarmail.com.au>]

Hello Everyone,

	In  3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1+deb8u3
	(2015-08-04) x86_64 GNU/Linux

I get this message when I attempt to use Chromium:

$ chromium
/usr/lib/chromium/chromium: relocation
error: /usr/lib/x86_64-linux-gnu/libavformat.so.57: symbol
avpriv_dict_set_timestamp, version LIBAVUTIL_55 not defined in file
libavutil.so.55 with link time reference

Much the same when I attempt to use goldendict:

$ goldendict
goldendict: relocation
error: /usr/lib/x86_64-linux-gnu/libavformat.so.57: symbol
avpriv_dict_set_timestamp, version LIBAVUTIL_55 not defined in file
libavutil.so.55 with link time reference

I have no idea what is happening here or how I work round it?

I can't find those files in my: /usr/lib/x86_64-linux-gnu/ directory?

Trying to install both those packages tells me they are "already
the newest version" so nothing to install?

Update, upgrade and reboot doesn't fix it.

Any clues please.

TIA,
Charlie