Hadoop 0.23 build error

[raghavendhra rahul]

Hi,
          I tried to build the hadoop 0.23.1 version .But it throws the
followung error during the build

Failed to execute goal org.apache.maven.plugins:maven-antrun-plugin:1.6:run
(tar) on project hadoop-mapreduce: An Ant BuildException has occured: exec
returned: 2

Any help......