I've had success importing certain kml files. Others not so much. The error i'm receiving in the ruby console is as follows:

fetching elevation from url: http://api.geonames.org/astergdemJSON?formatted=true&lat=38.7126087917573&lng=-77.1426263045962&username=aerilius&style=full&callback=returnJson
kmlImport.rb: geonames returned 38
Error: #<NoMethodError: undefined method `+' for nil:NilClass>

Any input would be helpful. Thanks