Method initialization failed from the command prompt

[Sofiane Bendoukha]

Hello,

executing this https://jclouds.apache.org/guides/openstack/ from Eclipse 
is successful.

The problem is when I try from the command line (unix system) I get 
these error:

ERROR: Action exception in step (2): Constructor call resulted in an 
exception: java.lang.NoClassDefFoundError: 
org/jclouds/logging/slf4j/config/SLF4JLoggingModule
java.lang.RuntimeException: Action exception in step (2): Constructor 
call resulted in an exception: java.lang.NoClassDefFoundError: 
org/jclouds/logging/slf4j/config/SLF4JLoggingModule


Any one can help?

Regards,

Sofiane.