No class defound error on android 4.4.4

Caused by: java.lang.NoClassDefFoundError: org.jivesoftware.smackx.disco.ServiceDiscoveryManager

at org.jivesoftware.smackx.bytestreams.socks5.Socks5BytestreamManager.enableServic e(Socks5BytestreamManager.java:709)

at org.jivesoftware.smackx.bytestreams.socks5.Socks5BytestreamManager.activate(Soc ks5BytestreamManager.java:702)

at org.jivesoftware.smackx.bytestreams.socks5.Socks5BytestreamManager.(Socks 5BytestreamManager.java:181)

at org.jivesoftware.smackx.bytestreams.socks5.Socks5BytestreamManager.getBytestrea mManager(Socks5BytestreamManager.java:167)

at org.jivesoftware.smackx.bytestreams.socks5.Socks5BytestreamManager$1.connection Created(Socks5BytestreamManager.java:100)

at org.jivesoftware.smack.tcp.XMPPTCPConnection.initConnection(XMPPTCPConnection.j ava:653)

at org.jivesoftware.smack.tcp.XMPPTCPConnection.connectInternal(XMPPTCPConnection. java:855)

at org.jivesoftware.smack.AbstractXMPPConnection.connect(AbstractXMPPConnection.ja va:364)

at com.xxx.xxx.Ejabberd.loginToChat(Ejabberd.java:311)