Codecs Modules Won't Load

Hi - wondering if anyone can help with a problem getting the Digium g729 codec to load. The installation and registration process goes fine, but when I attempt to start asterisk, I get the following messages

[Sep 25 11:27:49] WARNING[11086]: loader.c:362 load_dynamic_module: /usr/lib/asterisk/modules/ undefined symbol: ast_register_translator
[Sep 25 11:27:49] WARNING[11086]: loader.c:606 load_resource: Module ‘’ could not be loaded.

Thanks in advance.

do you have the right binaries for your version of Asterisk ?

I believe so. I am running Asterisk 1.2 and downloaded the binaries for 1.2 from digium. I also tried to download and install the speex codec for 1.2 and ran into the very same problem, ie everything goes fine right up until we try to load the module.

I have recompiled and reinstalled asterisk as well with the same result. Note, I did not compile or install the asterisk addons because kernal sources wern’t available. Might this be the problem?