Left file: appwork-v1_3_1/aspnet-mvc-starter/AspnetMvcStarter/Web.Debug.config  
Right file: appwork-v1_4_0/aspnet-mvc-starter/AspnetMvcStarter/Web.Debug.config  
<?xml version="1.0"?> <> <?xml version="1.0" encoding="utf-8"?>
  =  
<!-- For more information on using Web.config transformation visit https://go.microsoft.com/fwlink/?LinkId=301874 -->   <!-- For more information on using Web.config transformation visit https://go.microsoft.com/fwlink/?LinkId=301874 -->
     
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">   <configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
  <!--     <!--
    In the example below, the "SetAttributes" transform will change the value of       In the example below, the "SetAttributes" transform will change the value of
    "connectionString" to use "ReleaseSQLServer" only when the "Match" locator       "connectionString" to use "ReleaseSQLServer" only when the "Match" locator
    finds an attribute "name" that has a value of "MyDB".       finds an attribute "name" that has a value of "MyDB".
     
    <connectionStrings>       <connectionStrings>
      <add name="MyDB"         <add name="MyDB"
        connectionString="Data Source=ReleaseSQLServer;Initial Catalog=MyReleaseDB;Integrated Security=True"           connectionString="Data Source=ReleaseSQLServer;Initial Catalog=MyReleaseDB;Integrated Security=True"
        xdt:Transform="SetAttributes" xdt:Locator="Match(name)"/>           xdt:Transform="SetAttributes" xdt:Locator="Match(name)"/>
    </connectionStrings>       </connectionStrings>
  -->     -->
  <system.web>     <system.web>
    <!--       <!--
      In the example below, the "Replace" transform will replace the entire         In the example below, the "Replace" transform will replace the entire
      <customErrors> section of your Web.config file.         <customErrors> section of your Web.config file.
      Note that because there is only one customErrors section under the         Note that because there is only one customErrors section under the
      <system.web> node, there is no need to use the "xdt:Locator" attribute.         <system.web> node, there is no need to use the "xdt:Locator" attribute.
     
      <customErrors defaultRedirect="GenericError.htm"         <customErrors defaultRedirect="GenericError.htm"
        mode="RemoteOnly" xdt:Transform="Replace">           mode="RemoteOnly" xdt:Transform="Replace">
        <error statusCode="500" redirect="InternalError.htm"/>           <error statusCode="500" redirect="InternalError.htm"/>
      </customErrors>         </customErrors>
    -->       -->
  </system.web>     </system.web>
</configuration>   </configuration>