title: Why does Pandoc not retrieve the image file?
body: <p>On RStudio version 0.98.501 I had a long <code>.Rmd</code> file which was easily converted to html once I clicked <strong>KnitHtml</strong> button. The Knitting process, as I understand, created several folders including images (some manually added by myself), figures, cache and a <code>knitHtml</code> folder which included final <code>.html</code> file. I recently downloaded RStudio version 0.98.894 (preview release) because I wanted to use more features. Now, when I click <strong>KnitHtml</strong> I get following error:</p>
  <pre><code>pandoc.exe: Failed to retrieve C:/Users/durraniu/Documents/Trajectory1/images/vissim-view.png InvalidUrlException &quot;C:/Users/durraniu/Documents/Trajectory1/images/vissim-view.png&quot; &quot;Invalid scheme&quot; Error: pandoc document conversion failed with error 61
  </code></pre>
  <p>I copied all the images including the <code>vissim-view.png</code> as indicated above, from the images folder to the <code>knitHtml</code> folder and clicked the button again. This time it gave the same error related to image file which R would create i.e a plot. How to resolve this?</p>