<?xml version="1.0" encoding="us-ascii"?>
<ErrorDocumentation xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <ErrorName>CS0644</ErrorName>
  <Examples>
    <string>// cs0644.cs: `X' cannot derive from special class `System.ValueType'
// Line: 3
class X : System.ValueType {
}
</string>
  </Examples>
</ErrorDocumentation>