title: Not valid NCName - XSD Validation error
body: <p>The XSD has this element:</p>
  
  <p><code>&lt;xsd:element name = "systemReference" type = "xsd:IDREF"/&gt;</code></p>
  
  <p>And the value in my XML is this:</p>
  
  <pre><code>&lt;systemReference&gt;Axis Boss Ldn&lt;/systemReference&gt;
  </code></pre>
  
  <p>And when the validation is triggered, it gives the error:</p>
  
  <blockquote>
    <p>Message: Datatype error: Type:InvalidDatatypeValueException,
    Message:Value 'Axis Boss Ldn' is not valid NCName</p>
  </blockquote>
  
  <p>I am not able to figure out what is wrong here.</p>