title: failed to load external entity xml file
body: <p>I am parsing xml file by using libxml2.0, the code is below here. </p>
  
  <p>I am getting error as Failed to load external entity.</p>
  
  <pre><code>xmlDocPtr xmlDocumentPtr = xmlParseFile(inXMLFilePath.c_str()); 
  </code></pre>
  
  <p>I am getting null for the pointer xmlDocPtr xmlDocumentPtr;</p>
  
  <p>What could be the reason for this?</p>