Open Stack

Hi,
I want to use jclouds. I create pom.xml from
http://jclouds.apache.org/guides/openstack/#pom

Then I run
mvn dependency:copy-dependencies "-DoutputDirectory=./lib"

It shows errors like this BUILD FAILURE
Failed to execute goal
org.apache.maven.plugins:maven-dependency-plugin:2.1:copy-dependencies
(default-cli) on project my-app: Error copying artifact from
/home/ucsm/.m2/repository/aopalliance/aopalliance/1.0/aopalliance-1.0.jar
to /jclouds/lib/aopalliance-1.0.jar: /jclouds/lib/aopalliance-1.0.jar
(No such file or directory)

Can anybody solve this?
Please!