title: One or more of the Cache Types are invalidated: Blocks HTML output
body: <p>I just installed the mageneto and added my first product. It didn't show up in the font page so I went to <code>inventory</code> on product information and tried to set <code>Stock Availability</code> to <code>in stock</code> but I started getting this error message:</p>
  
  <blockquote>
    <p>One or more of the Cache Types are invalidated: Blocks HTML output.
    Click here to go to Cache Management and refresh cache types..</p>
  </blockquote>
  
  <p>I did this several times, logged and tried again but it appear every time I try to change <code>Stock Availability</code>. </p>
  
  <p>How do I fix this?</p>
  
  <p>Googling I fond that's a common issue on mageneto and found <a href="https://codeload.github.com/tomasinchoo/Inchoo_InvalidatedBlockCacheFix/zip/1.0.0" rel="nofollow noreferrer">this</a> exntension and installed following <a href="https://stackoverflow.com/questions/4874761/installing-magento-plugins-without-using-magento-connect">this instructions</a> but it didn't work either.</p>