<?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>CS4026</ErrorName>
  <Examples>
    <string>// CS4026: The CallerMemberName applied to parameter `x' will have no effect because it applies to a member that is used in context that do not allow optional arguments
// Line: 14
// Compiler options: -warnaserror

using System.Runtime.CompilerServices;

partial class D
{
	partial void Foo (string x = "x");
}

partial class D
{
	partial void Foo ([CallerMemberName] string x)
	{
	}
}</string>
  </Examples>
</ErrorDocumentation>