When running the command: scala> val df = withCatalog(empcatalog) I have the following problem: java.lang.NoClassDefFoundError: org/apache/spark/Logging at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:763) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) at java.net.URLClassLoader.access$100(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:368) at java.net.URLClassLoader$1.run(URLClassLoader.java:362) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:361) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.getDeclaredConstructors0(Native Method) at java.lang.Class.privateGetDeclaredConstructors(Class.java:2671) at java.lang.Class.getConstructor0(Class.java:3075) at java.lang.Class.newInstance(Class.java:412) at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:325) at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:152) at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:125) at withCatalog(<console>:32) ... 52 elided Caused by: java.lang.ClassNotFoundException: org.apache.spark.Logging at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 71 more I think the problem is I'm using Spark 2.1.0 and it no longer has org.apache.spark.logging. Can you please advise on how to resolve this issue without downgrading Spark version? Thank you very much! ... View more