org.apache.kafka.common.config.ConfigException: Invalid url in bootstrap.servers

While you are running the e-comm Streams job, you receive the following error:

SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".
SLF4J: Defaulting to no-operation (NOP) logger implementation
SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.
Exception in thread "Thread-29" org.apache.kafka.common.KafkaException: Failed to construct kafka consumer
at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:702)
at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:587)
at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:569)
at com.ibm.streamsx.messaging.kafka.KafkaConsumerClient.<init>(KafkaConsumerClient.java:45)
at com.ibm.streamsx.messaging.kafka.KafkaByteArrayConsumerV9.<init>(KafkaByteArrayConsumerV9.java:16)
at com.ibm.streamsx.messaging.kafka.KafkaConsumerFactory.getClient(KafkaConsumerFactory.java:47)
at com.ibm.streamsx.messaging.kafka.KafkaSource.getNewConsumerClient(KafkaSource.java:132)
at com.ibm.streamsx.messaging.kafka.KafkaSource.initialize(KafkaSource.java:115)
at com.ibm.streams.operator.internal.runtime.api.OperatorAdapter.initialize(OperatorAdapter.java:735)
at com.ibm.streams.operator.internal.jni.JNIBridge.<init>(JNIBridge.java:271)
Caused by: org.apache.kafka.common.config.ConfigException: Invalid url in bootstrap.servers: <IP>:<Port>
at org.apache.kafka.clients.ClientUtils.parseAndValidateAddresses(ClientUtils.java:45)
at org.apache.kafka.clients.consumer.KafkaConsumer.<init>(KafkaConsumer.java:620) 

To resolve this problem, ensure that the bootstrap.servers value in /home/streamsadmin/config/properties/consumer.properties is set to correct IP address and port number.