google cloud messaging - XMPP connection is failing in android for GCM CCS -

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i getting error while trying connect gcm ccs.

java.lang.nullpointerexception: attempt invoke interface method 'org.jivesoftware.smack.packetlistener org.jivesoftware.smack.debugger.smackdebugger.getreaderlistener()' on null object reference                                                                                 @ org.jivesoftware.smack.xmppconnection.initconnection(xmppconnection.java:930)                                                                                    @ org.jivesoftware.smack.xmppconnection.connectusingconfiguration(xmppconnection.java:904)     @ org.jivesoftware.smack.xmppconnection.connect(xmppconnection.java:1415)     @ com.example.gcm.gcmccsclient.connect(gcmccsclient.java:270)

i have searched lot didn't find solutionand not able figure out causing issue.


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