<?xml version="1.0" encoding="utf-8" ?>
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
  <!-- If system.codedom tag is absent -->
  <system.codedom xdt:Transform="InsertIfMissing">
  </system.codedom>

  <!-- If compilers tag is absent -->
  <system.codedom>
    <compilers xdt:Transform="InsertIfMissing">
    </compilers>
  </system.codedom>

  <!-- If a .cs compiler is already present, the existing entry needs to be removed before inserting the new entry -->
  <system.codedom>
    <compilers>
      <compiler
        extension=".cs"
        xdt:Transform="Remove"
        xdt:Locator="Match(extension)" />
    </compilers>
  </system.codedom>

  <!-- Inserting the new compiler -->
  <system.codedom>
    <compilers>
      <compiler
        language="c#;cs;csharp"
        extension=".cs"
        type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.CSharpCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
        warningLevel="4"
        compilerOptions="/langversion:6 /nowarn:1659;1699;1701"
        xdt:Transform="Insert" />
    </compilers>
  </system.codedom>

  <!-- If a .vb compiler is already present, the existing entry needs to be removed before inserting the new entry -->
  <system.codedom>
    <compilers>
      <compiler
        extension=".vb"
        xdt:Transform="Remove"
        xdt:Locator="Match(extension)" />
    </compilers>
  </system.codedom>

  <!-- Inserting the new compiler -->
  <system.codedom>
    <compilers>
      <compiler
        language="vb;vbs;visualbasic;vbscript"
        extension=".vb"
        type="Microsoft.CodeDom.Providers.DotNetCompilerPlatform.VBCodeProvider, Microsoft.CodeDom.Providers.DotNetCompilerPlatform, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"
        warningLevel="4"
        compilerOptions="/langversion:14 /nowarn:41008 /define:_MYTYPE=\&quot;Web\&quot; /optionInfer+"
        xdt:Transform="Insert" />
    </compilers>
  </system.codedom>
</configuration>