java - Getting this error while trying to connect facebook chat using smack -

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When using smile trying to add Facebook chat to get this error. Used jars Smack 3.3.1.jar, smackx 3.3.1.jar 

  exception in thread "main" java.lang.AbstractMethodError: org.jivesoftware.smackx.ServiceDiscoveryManager $ 1.connectionCreated ( on Lorg / on org.jivesoftware.smack.XMPPConnection on org.jivesoftware.smack.XMPPConnection.connectUsingConfiguration (XMPPConnection.java:604) V org.jivesoftware.smack.XMPPConnection.initConnection (XMPPConnection.java:652)); jivesoftware / Smack / connection .connect com.FacebookChatSample.main (XMPPConnection.java:1022) (FacebookChatSample.java:30)    
 
 
 I had the same problem I have your price package have not been put in your pom.xml  
 I've used the following Meven dependency:  < Pre>  & lt; Dependency & gt; & Lt; Group & gt; Jivesoftware & lt; / Group & gt; & Lt; ArtifactId & gt; Shaker & lt; / ArtifactId> & Lt; Version & gt; 3.1.0 & lt; / Edition & gt; & Lt; / Dependencies & gt;   
 When I try to connect to your server, I found the error when I replaced it with:  
  & lt; Dependency & gt; & Lt; Group & gt; org.igniterealtime.smack & lt; / Group & gt; & Lt; ArtifactId & gt; smackx & lt; / ArtifactId> & Lt; Version & gt; 3.2.1 & lt; / Edition & gt; & Lt; / Dependencies & gt;   
 It worked  
  Note:  circle of dependence was another entry from begging and should be left like this: < / p> 
  & lt; Dependency & gt; & Lt; Group & gt; org.igniterealtime.smack & lt; / Group & gt; & Lt; ArtifactId & gt; Shaker & lt; / ArtifactId> & Lt; Version & gt; 3.2.1 & lt; / Edition & gt; & Lt; / Dependencies & gt;   
  Note 2: () There  I did not use anything from explixitly smackx, it is used in XMPPConnection.initConnection where it informs all ConnectionCreationListener listeners Tries to do that a connection has just been established.

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