Rails - Sep 2014 - Help please ASAP getting stuck on showing articles

Hey 

I am using the gettting started with rails tutorial on Rails guide  
http://guides.rubyonrails.org/getting_started.html#showing-articles 

I am up to session 5.7 Showing articles. I am stuck on this session as i 
have changed my parameters to be strong and all went well. I have defined 
my show method in my controller however, when i link this to the HTML file 
i put this code as seen below however when i run it it shows an error 
saying line 3 .title is undefined. Any advice would be great. 

Thanks  

<p>
  <strong>Title:</strong>
  <%= @article.title %>
</p>
 
<p>
  <strong>Text:</strong>
  <%= @article.text %>
</p>


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