Why does my SlowCheetah configuration not work?

Question

I'm developing a WPF application on VS 2017 Community.

I've download SlowCheetah, so this is my

App.Debug.config

<?xml version="1.0" encoding="utf-8" ?>
<!-- For more information on using transformations 
     see the web.config examples at http://go.microsoft.com/fwlink/?LinkId=214134. -->
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
  <system.diagnostics>
    <trace autoflush="true" indentsize="4">
      <listeners>
        <add name="myListener" type="System.Diagnostics.TextWriterTraceListener" initializeData="application.log" />
        <remove name="Default" />
      </listeners>
    </trace>
  </system.diagnostics>
</configuration>

App.Release.config

<?xml version="1.0" encoding="utf-8" ?>
<!-- For more information on using transformations 
     see the web.config examples at http://go.microsoft.com/fwlink/?LinkId=214134. -->
<configuration xmlns:xdt="http://schemas.microsoft.com/XML-Document-Transform">
  <startup>
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5.2"/>
  </startup>
</configuration>

Now, whatever I choose "Debug" or "Release", nothing changes to app.config. Furthermore, clicking preview Transform to both files always show me app.config original content. Where am I wrong ?

Answer 1

you need to enable transforms on the config file. Right click on your project, Select Unload project. Right click again select Edit xxx.csproj.

Scroll to the bottom of the XML file.

It should look something like:

<Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
    <PropertyGroup>
      <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
    </PropertyGroup>
    <Error Condition="!Exists('$(SolutionDir)\.nuget\NuGet.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\.nuget\NuGet.targets'))" />
    <Error Condition="!Exists('..\packages\SlowCheetah.2.5.48\build\SlowCheetah.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\SlowCheetah.2.5.48\build\SlowCheetah.targets'))" />
    <Error Condition="!Exists('..\packages\BuildWebCompiler.1.11.359\build\BuildWebCompiler.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\BuildWebCompiler.1.11.359\build\BuildWebCompiler.targets'))" />
  </Target>
  <Target Name="BeforeBuild">
  </Target>
  <Target Name="AfterBuild">
  </Target>
  <Import Project="$(SlowCheetahTargets)" Condition="Exists('$(SlowCheetahTargets)')" Label="SlowCheetah" />
  <Import Project="..\packages\SlowCheetah.2.5.48\build\SlowCheetah.targets" Condition="Exists('..\packages\SlowCheetah.2.5.48\build\SlowCheetah.targets')" />
  <Import Project="..\packages\BuildWebCompiler.1.11.359\build\BuildWebCompiler.targets" Condition="Exists('..\packages\BuildWebCompiler.1.11.359\build\BuildWebCompiler.targets')" />

Insert the following XML:

<Target Name="BeforeBuild">
    <TransformXml Source="App.config" Transform="App.$(Configuration).config" Destination="App.config" />
  </Target>

so it now looks like

<Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
    <PropertyGroup>
      <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
    </PropertyGroup>
    <Error Condition="!Exists('$(SolutionDir)\.nuget\NuGet.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\.nuget\NuGet.targets'))" />
    <Error Condition="!Exists('..\packages\SlowCheetah.2.5.48\build\SlowCheetah.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\SlowCheetah.2.5.48\build\SlowCheetah.targets'))" />
    <Error Condition="!Exists('..\packages\BuildWebCompiler.1.11.359\build\BuildWebCompiler.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\BuildWebCompiler.1.11.359\build\BuildWebCompiler.targets'))" />
  </Target>
  <Target Name="BeforeBuild">
    <TransformXml Source="App.config" Transform="App.$(Configuration).config" Destination="App.config" />
  </Target>
  <Target Name="AfterBuild">
  </Target>
  <Import Project="$(SlowCheetahTargets)" Condition="Exists('$(SlowCheetahTargets)')" Label="SlowCheetah" />
  <Import Project="..\packages\SlowCheetah.2.5.48\build\SlowCheetah.targets" Condition="Exists('..\packages\SlowCheetah.2.5.48\build\SlowCheetah.targets')" />
  <Import Project="..\packages\BuildWebCompiler.1.11.359\build\BuildWebCompiler.targets" Condition="Exists('..\packages\BuildWebCompiler.1.11.359\build\BuildWebCompiler.targets')" />

right click select reload project. Rebuild.

also ensure your config files are nested correctly, they should look like this:

   <Content Include="App.config">
      <SubType>Designer</SubType>
    </Content>
    <Content Include="App.Debug.config">
      <DependentUpon>App.config</DependentUpon>
    </Content>
    <Content Include="App.Release.config">
      <DependentUpon>App.config</DependentUpon>
    </Content>