[chef] chef-expander error-message

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Hi!

please help me out

I have the following error message when I try to run chef-expander

chef-expander
INFO: Chef Expander 0.10.4 starting cluster with  nodes
FATAL: undefined method `times' for nil:NilClass (NoMethodError)

Firstly, the problem was that the Status Page in webgui is empty even thought
there was a connection with node

I found few articles describing that this may happen because of chef-expander
wasn't running

But I can't run chef-expander because it fails run

ruby -v
ruby 1.8.7

Thanks!