# What is this? "symbol lookup error: modules/codec\_speex

**URL:** <https://community.asterisk.org/t/what-is-this-symbol-lookup-error-modules-codec-speex/12388>\
**Category:** Asterisk Support\
**Created:** [February 13, 2007, 11:41am UTC](https://community.asterisk.org/t/what-is-this-symbol-lookup-error-modules-codec-speex/12388 "2007-02-13T11:41:25Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![jasonchan](https://avatars.discourse-cdn.com/v4/letter/j/e9bcb4/32.png) [@jasonchan](https://community.asterisk.org/u/jasonchan)\
**Post date:** [February 13, 2007, 11:41am UTC](https://community.asterisk.org/t/what-is-this-symbol-lookup-error-modules-codec-speex/12388/1 "2007-02-13T11:41:25Z")

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I tried 1.2.14, 1.2.15, 1.4.0  
tarball and from svn.  
All return the following once I launch “asterisk -c” after success install.  
Thanks.

NOTE: This is a development version of Asterisk, and should not be used in  
production installations.  
[ Booting…  
[Reading Master Configuration]  
[Initializing Custom Configuration Options]  
[Feb 13 18:49:02] NOTICE[28458]: manager.c:3039 init\_manager: Invalid keyword = in manager.conf [general]  
[Feb 13 18:49:02] NOTICE[28458]: cdr.c:1094 do\_reload: CDR simple logging enabled.  
[Feb 13 18:49:02] NOTICE[28458]: loader.c:795 load\_modules: 147 modules will be loaded.  
.[Feb 13 18:49:02] WARNING[28458]: res\_smdi.c:725 load\_module: No SMDI interfaces are available to listen on, not starting SDMI listener.  
…[Feb 13 18:49:02] WARNING[28458]: translate.c:600 \_\_ast\_register\_translator: plc\_samples 160 format 6  
…asterisk: symbol lookup error: /usr/lib/asterisk/modules/codec\_speex.so: undefined symbol: speex\_decode\_int  
[root@localhost asterisk]#  
[root@localhost asterisk]#

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<div class="post-metadata">

**Author:** ![baconbuttie](https://sea1.discourse-cdn.com/asterisk/user_avatar/community.asterisk.org/baconbuttie/32/916_2.png) [@baconbuttie](https://community.asterisk.org/u/baconbuttie)\
**Post date:** [February 13, 2007, 12:10pm UTC](https://community.asterisk.org/t/what-is-this-symbol-lookup-error-modules-codec-speex/12388/2 "2007-02-13T12:10:01Z")

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do you want to use speex ? the easiest way to get around this would be to either remove the codec\_speex.so module, or add a “noload =\> codec\_speex.so” line to modules.conf.

i guess it’s a dependency issue … i can’t remember the dependencies for speex, but then, i don’t bother loading it as i have no interest in using it.