scala - java.util.NoSuchElementException: Column not found ID in table demo.usertable in Cassandra Spark -

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i try write rdd[cassandrarow] existing cassandra table using spark-cassandra-connector. here piece of code

val conf = new sparkconf().setappname(getclass.getsimplename)             .setmaster("local[*]")             .set("spark.cassandra.connection.host", host)         val sc = new sparkcontext("local[*]", keyspace, conf) val rdd = sc.textfile("hdfs://hdfs-host:8020/users.csv") val columns = array("id", "firstname", "lastname", "email", "country") val types = array("int", "string", "string", "string", "string") val crdd=rdd.map(p => {             var tokens = p.split(",")             new cassandrarow(columns,tokens)         }) val targetedcolumns = somecolumns.seqtosomecolumns(columns) crdd.savetocassandra(keyspace, tablename, targetedcolumns,  writeconf.fromsparkconf(conf))

when run code following exception

exception in thread "main" java.util.nosuchelementexception: column not found id in table demo.usertable

here actual schema of table 

create table usertable (   id int,   country text,   email text,   firstname text,   lastname text,   primary key ((id)) )

any suggestion? thanks

keyspace, table , column names case sensitive in cassandra. have tried adjusting code use same case table definition? (for example use 'id' instead of 'id').


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