title: How to solve this issue regarding Ruby gems installation?
body: <p>Can anyone please tell me what does this error mean which is occuring as I'm trying to install Ruby sass to build my theme in Liferay 7? i have referred these two links to proceed with theme creation in Liferay 7.
  1)<a href="http://www.azilen.com/blog/step-by-step-guide-to-create-theme-for-liferay-dxp-7/" rel="nofollow noreferrer">http://www.azilen.com/blog/step-by-step-guide-to-create-theme-for-liferay-dxp-7/</a>
  2)<a href="http://www.javasavvy.com/liferay-dxp-theme-generator-tutorial/#comment-1699" rel="nofollow noreferrer">http://www.javasavvy.com/liferay-dxp-theme-generator-tutorial/#comment-1699</a>
  I'm using Windows 10 as my OS.I'm behind our company proxy(If it might be an issue).
  When I'm giving this command:</p>
  
  <pre><code>gem sources -a http://rubygems.org/
  </code></pre>
  
  <p>This error is appearing:</p>
  
  <pre><code>Error fetching http://rubygems.org/:
      no such name (http://rubygems.org/specs.4.8.gz)
  </code></pre>