Why are we getting "Error, Parameters must be in the form '-parameter value'" during search head cluster member initialization?

Hi, I am trying to setup a Search Head Cluster, and during the Cluster member initialization step, `./splunk init shcluster-config` command always results in Error, Parameters must be in the form '-parameter value' Double checked all values and there are no typos. Only item I am not using is "shcluster_label" which the guide says is optional. Following steps from: http://docs.splunk.com/Documentation/Splunk/6.4.0/DistSearch/SHCdeploymentoverview Please assist. Thanks, ~ Abhi