title: "not a schema document" when validating XML schema with notepad++ XML tools
body: <p>Im am trying to create an XML schema for the following XML document.
  <a href="https://www.nationalbanken.dk/_vti_bin/DN/DataService.svc/CurrencyRatesHistoryXML?lang=en" rel="nofollow noreferrer">https://www.nationalbanken.dk/_vti_bin/DN/DataService.svc/CurrencyRatesHistoryXML?lang=en</a></p>
  
  <ol>
  <li>As a starting point I have tried to create a very basic XML schema based on the guide from w3 schools. </li>
  </ol>
  
  <p><a href="https://www.w3schools.com/xml/schema_schema.asp" rel="nofollow noreferrer">https://www.w3schools.com/xml/schema_schema.asp</a></p>
  
  <p>which as resulted in this - very basic starting point. </p>
  
  <pre><code>&lt;?xml version="1.0" encoding="UTF-8"?&gt;
  
  &lt;xs:schema xmlns:xs="http://www.gesmes.org/xml/2002-08-01" targetNamespace="http://www.ecb.int/vocabulary/2002-08-01/eurofxref" xmlns="http://www.ecb.int/vocabulary/2002-08-01/eurofxref" elementFormDefault="qualified"&gt;
          &lt;xs:element name="Envelope"&gt;
  
          &lt;/xs:element&gt;
  &lt;/xs:schema&gt;
  </code></pre>
  
  <ol start="2">
  <li>Then I have added the gesmes:schemaLocation attribute to the root node of the origional XML document. </li>
  </ol>
  
  <pre><code>&lt;gesmes:Envelope 
      xmlns="http://www.ecb.int/vocabulary/2002-08-01/eurofxref"
      xmlns:gesmes="http://www.gesmes.org/xml/2002-08-01"
      gesmes:schemaLocation="http://www.ecb.int/vocabulary/2002-08-01/eurofxref ..\StockDownloadResources\CurrenciesDownloadMANUAL.XSD"&gt;
  </code></pre>
  
  <ol start="3">
  <li>Then I have installed installed the XML tools plugin to my Notepad++ and tried to validate the XML doc agains the basic schema. </li>
  </ol>
  
  <p>The validation results in the following error: 
  Following error occurred during schema file parsing: The XML document '\CurrenciesDownloadMANUAL.XSD' is not a schema document. </p>
  
  <p>What am I missing ?</p>