ExtractorYoutubeDL Not Working

[tkrn]

First of all I added gson-2.8.6.jar and heritrix-contrib-3.4.0-20200304.jar to the lib/ directory and added them into my CLASSPATH.

Here is my configuration:

Youtube-dl Package:

[root@archive:/zarchive/heritrix/jobs/test.tkrn.io/latest]#apt list | grep youtube-dl

WARNING: apt does not have a stable CLI interface. Use with caution in scripts.

youtube-dl/stable,now 2019.01.17-1.1 all [installed]

Top Level Bean and Fetch Chain:

 .....
 <bean id="extractorCss" class="org.archive.modules.extractor.ExtractorCSS">
 </bean> 
 <bean id="extractorJs" class="org.archive.modules.extractor.ExtractorJS">
 </bean>
 <bean id="extractorSwf" class="org.archive.modules.extractor.ExtractorSWF">
 </bean>
 <bean id="extractorYoutubeDL" class="org.archive.modules.extractor.ExtractorYoutubeDL">
 </bean>

 <!-- now, processors are assembled into ordered FetchChain bean -->
 <bean id="fetchProcessors" class="org.archive.modules.FetchChain">
  <property name="processors">
   <list>
    <!-- re-check scope, if so enabled... -->
    <ref bean="preselector"/>
    <!-- ...then verify or trigger prerequisite URIs fetched, allow crawling... -->
    <ref bean="preconditions"/>
    <!-- ...fetch if DNS URI... -->
    <ref bean="fetchDns"/>
    <!-- <ref bean="fetchWhois"/> -->
    <!-- ...fetch if HTTP URI... -->
    <ref bean="fetchHttp"/>
    <!-- ...extract outlinks from HTTP headers... -->
    <ref bean="extractorHttp"/>
    <!-- ...extract outlinks from HTML content... -->
    <ref bean="extractorHtml"/>
    <!-- ...extract outlinks from CSS content... -->
    <ref bean="extractorCss"/>
    <!-- ...extract outlinks from Javascript content... -->
    <ref bean="extractorJs"/>
    <!-- ...extract outlinks from Flash content... -->
    <ref bean="extractorSwf"/>
    <!-- ...extract outlooks from YoutTube content... -->
    <ref bean="extractorYoutubeDL"/>
   </list>
  </property>
 </bean>

Warc Writer Chain

<!-- now, processors are assembled into ordered DispositionChain bean -->
 <bean id="dispositionProcessors" class="org.archive.modules.DispositionChain">
  <property name="processors">
   <list>
    <!-- write to aggregate archival files... -->
    <ref bean="warcWriter"/>
    <!-- ...send each outlink candidate URI to CandidateChain, 
         and enqueue those ACCEPTed to the frontier... -->
    <ref bean="extractorYoutubeDL"/>
    <ref bean="candidates"/>
    <!-- ...then update stats, shared-structures, frontier decisions -->
    <ref bean="disposition"/>
    <!-- <ref bean="rescheduler" /> --> 	
   </list>
  </property> 	
 </bean>

extractYoutubeDL.log - It's empty...

[root@archive:/zarchive/heritrix/jobs/test.tkrn.io/latest]#cat logs/extractorYoutubeDL.log

Am I missing anything? When I try to replay the Warc them embedded youtube video is not captured.