Getting below error while trying to test sample application...

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Test set: org.arquillian.example.GreeterTest

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Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.437 s <<< FAILURE! - in org.arquillian.example.GreeterTest

org.arquillian.example.GreeterTest  Time elapsed: 0.437 s  <<< ERROR!

java.lang.RuntimeException: Could not create new instance of class org.jboss.arquillian.test.impl.EventTestRunnerAdaptor

Caused by: java.lang.reflect.InvocationTargetException

Caused by: java.lang.RuntimeException: Could not create new instance of class org.jboss.arquillian.core.impl.ManagerImpl

Caused by: java.lang.reflect.InvocationTargetException

Caused by: java.lang.NoClassDefFoundError: org/jboss/arquillian/drone/spi/DroneConfiguration

Caused by: java.lang.ClassNotFoundException: org.jboss.arquillian.drone.spi.DroneConfiguration