I'm still figuring out my schedule!  I should know soon...

Here is the description of what I am trying to do from my original post:

I'm trying to add Spanish support to say.  I'm using something like:

<include>
 <language name="es" sound-path="$${base_dir}/sounds/es/mx/asterisk"
tts-engine="cepstral" tts-voice="callie">
  <X-PRE-PROCESS cmd="include" data="demo/*.xml"/> <!-- Note: this
now grabs whole subdir, previously grabbed only demo.xml -->
  <!--voicemail_en_tts is purely implemented with tts, we have the
files based one that is the default. -->
  <X-PRE-PROCESS cmd="include" data="vm/sounds.xml"/>  <!--
vm/tts.xml if you want to use tts and have cepstral -->
 </language>
</include>

in conf/lang/es which is included by freeswitch.conf:

<X-PRE-PROCESS cmd="include" data="lang/es/*.xml"/>

..right after English.  Yet I continue to get

[ERR] switch_ivr.c:2014 switch_ivr_say() Invalid SAY Interface [es]!

 Whenever trying to use say:

<action application="say" data="es name_spelled pronounced
${caller_id_number}"/>

 What am I missing?