cassandra - Exception in thread "main" java.lang.AbstractMethodErrorat org.apache.spark.Logging$class.log(Logging.scala:52) -


hi getting below exception while running spark application. application read text file using spark , persisting same cassandra db.

exception in thread "main" java.lang.abstractmethoderror     @ org.apache.spark.logging$class.log(logging.scala:52)     @ com.datastax.spark.connector.cql.cassandraconnector$.log(cassandraconnector.scala:142)     @ org.apache.spark.logging$class.logdebug(logging.scala:63)     @ com.datastax.spark.connector.cql.cassandraconnector$.logdebug(cassandraconnector.scala:142)     @ com.datastax.spark.connector.cql.cassandraconnector$.com$datastax$spark$connector$cql$cassandraconnector$$createsession(cassandraconnector.scala:152)     @ com.datastax.spark.connector.cql.cassandraconnector$$anonfun$4.apply(cassandraconnector.scala:149)     @ com.datastax.spark.connector.cql.cassandraconnector$$anonfun$4.apply(cassandraconnector.scala:149)     @ com.datastax.spark.connector.cql.refcountedcache.createnewvalueandkeys(refcountedcache.scala:36)     @ com.datastax.spark.connector.cql.refcountedcache.acquire(refcountedcache.scala:61)     @ com.datastax.spark.connector.cql.cassandraconnector.opensession(cassandraconnector.scala:72)     @ com.datastax.spark.connector.cql.cassandraconnector.withsessiondo(cassandraconnector.scala:97)     @ com.datastax.spark.connector.cql.cassandraconnector.withclusterdo(cassandraconnector.scala:108)     @ com.datastax.spark.connector.cql.schema$.fromcassandra(schema.scala:123)     @ com.datastax.spark.connector.writer.tablewriter$.apply(tablewriter.scala:163)     @ com.datastax.spark.connector.rddfunctions.savetocassandra(rddfunctions.scala:60)     @ com.datastax.spark.connector.rddjavafunctions.savetocassandra(rddjavafunctions.java:24)     @ com.datastax.spark.connector.rddanddstreamcommonjavafunctions.savetocassandra(rddanddstreamcommonjavafunctions.java:77)     @ com.datastax.spark.connector.rddanddstreamcommonjavafunctions.savetocassandra(rddanddstreamcommonjavafunctions.java:156)     @ com.datastax.spark.connector.rddanddstreamcommonjavafunctions.savetocassandra(rddanddstreamcommonjavafunctions.java:232)     @ test.sparkwithcassandra.main(sparkwithcassandra.java:82)


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