Amaro Install Error

[nishtacular]

Hi all,

I'm having some trouble with the steup. See below, any pointers? Thanks.

-e:789:in `+': no implicit conversion of nil into String (TypeError)
    from -e:789:in `block (2 levels) in <main>'
    from -e:258:in `[]'
    from -e:258:in `run!'
    from -e:308:in `block in run_sequence'
    from -e:307:in `each'
    from -e:307:in `run_sequence'
    from -e:827:in `<main>'

[nishtacular]

Sorted.