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  1. ,
    Expert tip

    Check if you didn't forget to instantiate your topic in the kafka broker.

  2. ,

    This error comes up in the old version of spring-test , you should update tospring test 4.3.2

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via GitHub by Patrick2611
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com/google/common/uti l/concurrent/ThreadFactoryBuilder
via by Unknown author, 2 years ago
java.lang.NoClassDefFoundError: org/spark-project/guava/util/concurrent/ThreadFactoryBuilder at org.apache.spark.util.Utils$.<init>(Utils.scala:858) at org.apache.spark.util.Utils$.<clinit>(Utils.scala) at org.apache.spark.SparkConf.<init>(SparkConf.scala:58) at org.apache.spark.SparkConf.<init>(SparkConf.scala:52) at org.test.spark.HelloWorld$.main(HelloWorld.scala:15) at org.test.spark.HelloWorld.main(HelloWorld.scala)Caused by: java.lang.ClassNotFoundException: org.spark-project.guava.util.concurrent.ThreadFactoryBuilder at$ at$ at Method) at at java.lang.ClassLoader.loadClass( at sun.misc.Launcher$AppClassLoader.loadClass( at java.lang.ClassLoader.loadClass( ... 6 more