hnsearch-error

/var/lib/gems/1.8/gems/nestful-1.0.3/lib/nestful/endpoint.rb:39:in `request': /var/lib/gems/1.8/gems/nestful-1.0.3/lib/nestful/request.rb:99: syntax error, unexpected '.', expecting kEND (SyntaxError)
        .merge(content_type_headers)
         ^
/var/lib/gems/1.8/gems/nestful-1.0.3/lib/nestful/request.rb:100: syntax error, unexpected '.', expecting kEND
        .merge(headers)
         ^
	from /var/lib/gems/1.8/gems/nestful-1.0.3/lib/nestful/endpoint.rb:23:in `get'
	from /var/lib/gems/1.8/gems/nestful-1.0.3/lib/nestful.rb:16:in `get'
	from /var/lib/gems/1.8/gems/HNsearch-1.0/lib/HNsearch/HNsearch_api.rb:16:in `query_items'
	from /var/lib/gems/1.8/gems/HNsearch-1.0/lib/HNsearch.rb:11:in `items'
	from /var/lib/gems/1.8/gems/HNsearch-1.0/lib/HNsearch/cli.rb:17:in `items'
	from /var/lib/gems/1.8/gems/thor-0.18.1/lib/thor/command.rb:27:in `__send__'
	from /var/lib/gems/1.8/gems/thor-0.18.1/lib/thor/command.rb:27:in `run'
	from /var/lib/gems/1.8/gems/thor-0.18.1/lib/thor/invocation.rb:120:in `invoke_command'
	from /var/lib/gems/1.8/gems/thor-0.18.1/lib/thor.rb:363:in `dispatch'
	from /var/lib/gems/1.8/gems/thor-0.18.1/lib/thor/base.rb:439:in `start'
	from /var/lib/gems/1.8/gems/HNsearch-1.0/bin/HNsearch:4
	from /usr/local/bin/HNsearch:19:in `load'
	from /usr/local/bin/HNsearch:19