NameError in Articles#show

Showing app/views/articles/show.html.erb where line #13 raised:

uninitialized constant ActionView::Base::CompiledTemplates::JSON

Extracted source (around line #13):

10: 		if @article.videos.first.file_name.length<15  
11: 		
12: 	 	vimeo_video_json_url     = "http://vimeo.com/api/v2/video/%s.json" %@article.videos.first.file_name 
13: 		thumbnail_image_location = JSON.parse(open(vimeo_video_json_url).read).first['thumbnail_large']
14: 		small_thumb_location = JSON.parse(open(vimeo_video_json_url).read).first['thumbnail_small']
15: 	
16: 	

RAILS_ROOT: /store/ct/creative

Application Trace | Framework Trace | Full Trace
/usr/local/rvm/gems/ruby-1.8.7-p334/gems/activesupport-2.3.12/lib/active_support/dependencies.rb:466:in `load_missing_constant'
/usr/local/rvm/gems/ruby-1.8.7-p334/gems/activesupport-2.3.12/lib/active_support/dependencies.rb:106:in `const_missing'
/store/ct/creative/app/views/articles/show.html.erb:13:in `_run_erb_app47views47articles47show46html46erb'

Request

Parameters:

{"id"=>"digital-up-north-video-2-sentric-music-liverpool"}

Show session dump

Response

Headers:

{"Content-Type"=>"text/html",
 "Cache-Control"=>"no-cache"}