Apache Kafka - kafka-server-start.sh is not getting started - apache-kafka

Question

I am currently studying kafka and new , I am trying to start the kafka-server-start.sh config/server.properties but getting the below error message, I searched stackoverflow and i am unable to get the solution. Could anyone please advise how to fix this.
Error Message:
SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.
SLF4J: Actual binding is of type [org.apache.logging.slf4j.Log4jLoggerFactory]
ERROR StatusLogger No log4j2 configuration file found. Using default
configuration: logging only errors to the console.
21:48:52.090 [main] FATAL kafka.Kafka$ - null
java.lang.NoSuchMethodError: scala.Predef$.refArrayOps([Ljava/lang/Object;)Lscala/collection/mutable/ArrayOps;
at kafka.utils.CoreUtils$.parseCsvList(CoreUtils.scala:213) ~[kafka_2.11-0.9.0.0.jar:?]
at kafka.server.KafkaConfig.<init>(KafkaConfig.scala:742) ~[kafka_2.11-0.9.0.0.jar:?]
at kafka.server.KafkaConfig$.fromProps(KafkaConfig.scala:691) ~[kafka_2.11-0.9.0.0.jar:?]
at kafka.server.KafkaServerStartable$.fromProps(KafkaServerStartable.scala:28) ~[kafka_2.11-0.9.0.0.jar:?]
at kafka.Kafka$.main(Kafka.scala:58) [kafka_2.11-0.9.0.0.jar:?]
at kafka.Kafka.main(Kafka.scala) [kafka_2.11-0.9.0.0.jar:?]
I am using Ubuntu 14.04, Java 1.8 build 101, zookeeper version 3.4 and kafka version 2.11-0.9
Zookeeper properties (zoo.cfg):
tickTime=2000
initLimit=10
syncLimit=5
dataDir=/usr/local/zookeeper-3.4.10/data
clientPort=2181
kafka properties (server.properties):
broker.id=0
listeners=PLAINTEXT://:9092
num.network.threads=3
num.io.threads=8
socket.send.buffer.bytes=102400
socket.receive.buffer.bytes=102400
socket.request.max.bytes=104857600
log.dirs=/usr/local/kafka/kafka-log-1
num.partitions=2
num.recovery.threads.per.data.dir=1
log.retention.hours=168
log.segment.bytes=1073741824
log.retention.check.interval.ms=300000
log.cleaner.enable=false
zookeeper.connect=localhost:2181
zookeeper.connection.timeout.ms=6000

Answer 1

This is generally a sign of a Scala version issue; the software being ran is trying to find a Scala internal method that is not available in the version you have installed
NoSuchMethodError: scala.Predef$
According to your comment
scala I have 2.12 version.
I don't think Scala 2.12 existed when Kafka 0.9 was even released, but if you don't plan on downgrading Scala, then you must use a Kafka version built with 2.12.
On the Apache Kafka site, you can find Scala 2.12 - kafka_2.12-2.0.0.tgz links.
Or you can use apt-get to install Kafka via Confluent Platform, then you can use something like sudo service start confluent-kafka