shared_utils.rb:42:in traverse_for_match': undefined method each' for nil:NilClass (NoMethodError)

[szTheory]

Here is the fix: http://www.hindoogle.com/blog/2009/09/scrubyt-traverse_for_match-nilclass/

Here is the error:

/opt/local/lib/ruby/gems/1.8/gems/scrubyt-0.4.06/lib/scrubyt/utils/shared_utils.rb:42:in traverse_for_match': undefined methodeach' for nil:NilClass (NoMethodError)
from /opt/local/lib/ruby/gems/1.8/gems/scrubyt-0.4.06/lib/scrubyt/utils/shared_utils.rb:42:in call' from /opt/local/lib/ruby/gems/1.8/gems/scrubyt-0.4.06/lib/scrubyt/utils/shared_utils.rb:42:intraverse_for_match'
from /opt/local/lib/ruby/gems/1.8/gems/scrubyt-0.4.06/lib/scrubyt/utils/shared_utils.rb:42:in each' from /opt/local/lib/ruby/gems/1.8/gems/scrubyt-0.4.06/lib/scrubyt/utils/shared_utils.rb:42:intraverse_for_match'
from /opt/local/lib/ruby/gems/1.8/gems/scrubyt-0.4.06/lib/scrubyt/utils/shared_utils.rb:44:in call' from /opt/local/lib/ruby/gems/1.8/gems/scrubyt-0.4.06/lib/scrubyt/utils/shared_utils.rb:44:intraverse_for_match'
from /opt/local/lib/ruby/gems/1.8/gems/scrubyt-0.4.06/lib/scrubyt/utils/simple_example_lookup.rb:36:in find_node_from_text' from /opt/local/lib/ruby/gems/1.8/gems/scrubyt-0.4.06/lib/scrubyt/core/scraping/filters/tree_filter.rb:67:ingenerate_XPath_for_example'
... 7 levels...
from /opt/local/lib/ruby/gems/1.8/gems/scrubyt-0.4.06/lib/scrubyt/core/shared/extractor.rb:75:in initialize' from /opt/local/lib/ruby/gems/1.8/gems/scrubyt-0.4.06/lib/scrubyt/core/shared/extractor.rb:32:innew'
from /opt/local/lib/ruby/gems/1.8/gems/scrubyt-0.4.06/lib/scrubyt/core/shared/extractor.rb:32:in `define'
from my-scraper.rb:11

[latompa]

I'm getting this error as well

require 'rubygems'
require 'scrubyt'

Scrubyt::Extractor.define do
  fetch "http://john.wordpress.com"
  site_information '//*' do
    is_feed "//feed"
  end
end.to_hash.first

mechanize (0.9.3)
scrubyt (0.4.06)
hpricot (0.8.2)

[tourque3000]

I vote to get this put into the next release

[fad]

I suddenly got this problem with scripts that had been working before. Solved it by deinstalling a newer version of hpricot I had gotten thus reversing to version 0.6.164.
This http://www.hindoogle.com/blog/index.php?s=rails&sbutt=Go didn't work, but looking into the file I got the idea with hpricot. Also check your installed mechanize versions if you're having problems with scrubyt. Seems to mes they stopped development of it in 2008 and you're stuck with using the old versions of the other libraries now :/