can not build datasets with maven

[MrMartin911]

Hi,
I try to implement the demos, but when I would like to create the datasets with the mvn command, it comes to an error:
[INFO] ------------------------------------------------------------------------ [INFO] Reactor Summary: [INFO] [INFO] demo ............................................... SUCCESS [ 5.167 s] [INFO] demo-core .......................................... SKIPPED [INFO] demo-crunch ........................................ SKIPPED [INFO] demo-logging-webapp ................................ SKIPPED [INFO] demo-reports-webapp ................................ SKIPPED [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 5.426 s [INFO] Finished at: 2016-06-02T11:06:06+02:00 [INFO] Final Memory: 35M/1370M [INFO] ------------------------------------------------------------------------ Exception in thread "Thread-2" java.lang.NoClassDefFoundError: org/apache/hadoop/util/ShutdownHookManager$2 at org.apache.hadoop.util.ShutdownHookManager.getShutdownHooksInOrder(ShutdownHookManager.java:124) at org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:52) Caused by: java.lang.ClassNotFoundException: org.apache.hadoop.util.ShutdownHookManager$2 at org.codehaus.plexus.classworlds.strategy.SelfFirstStrategy.loadClass(SelfFirstStrategy.java:50) at org.codehaus.plexus.classworlds.realm.ClassRealm.unsynchronizedLoadClass(ClassRealm.java:271) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:247) at org.codehaus.plexus.classworlds.realm.ClassRealm.loadClass(ClassRealm.java:239) ... 2 more

The dataset is not set.

We don't use the cloudera VM, we use cloudera enterprise in cluster mode.

Thanks in advance.
Martin