error: undefined method `keys' for #<Array:0x000000028643c0>

[Nasaa169]

I'm trying to convert a facebook feed json file, but it keeps returning this error:
error: undefined method `keys' for #Array:0x000000028643c0

[dlio]

I didn't attempt to patch this gem but I did post a small script that handles arrays in json to csv conversion here:
http://stackoverflow.com/questions/7845015/convert-json-to-csv-in-ruby