Edit C:\Windows\Microsoft.NET\Framework\v4.0.30319\Workflow.VisualBasic.Targets

<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <UsingTask TaskName="System.Workflow.ComponentModel.Compiler.CompileWorkflowTask" AssemblyName="System.Workflow.ComponentModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
  <UsingTask TaskName="System.Workflow.ComponentModel.Compiler.CreateWorkflowManifestResourceNameForVB" AssemblyName="System.Workflow.ComponentModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
  <UsingTask TaskName="System.Workflow.ComponentModel.Compiler.CompileWorkflowCleanupTask" AssemblyName="System.Workflow.ComponentModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" />
  <PropertyGroup>
    <WinWFTempFiles>
    </WinWFTempFiles>
    <KeepWinWFTempFiles>
    </KeepWinWFTempFiles>
  </PropertyGroup>
  <PropertyGroup>
    <CoreCompileDependsOn>$(CoreCompileDependsOn);WorkflowCompilation</CoreCompileDependsOn>
    <CoreBuildDependsOn>$(CoreBuildDependsOn);WorkflowCompilationCleanup</CoreBuildDependsOn>
  </PropertyGroup>

<PropertyGroup>
    <CreateManifestResourceNamesDependsOn>
      $(CreateManifestResourceNamesDependsOn);PrepareWorkflowResources
    </CreateManifestResourceNamesDependsOn>
    <CreateCustomManifestResourceNamesDependsOn>
      $(CreateCustomManifestResourceNamesDependsOn);CreateWorkflowManifestResourceNames
    </CreateCustomManifestResourceNamesDependsOn>
    <CreateWorkflowManifestResourceNamesDependsOn></CreateWorkflowManifestResourceNamesDependsOn>
  </PropertyGroup>

</Target>
  <Target Name="CreateWorkflowManifestResourceNames"
          DependsOnTargets="$(CreateWorkflowManifestResourceNamesDependsOn)">

</Target>

<PropertyGroup>
    <WorkflowCompilationDependsOn>CreateWorkflowManifestResourceNames</WorkflowCompilationDependsOn>
  </PropertyGroup>

<Target Name="WorkflowCompilation" 
          Inputs="$(MSBuildAllProjects);
          @(Compile);
          @(Content);
          @(EmbeddedResource);
          $(ApplicationIcon);
          $(AssemblyOriginatorKeyFile);
          @(ManifestNonResxWithNoCultureOnDisk);
          @(ReferencePath);
          $(TargetFrameworkMoniker);
          @(CompiledLicenseFile)" 
          Outputs="$(DocFile);
          @(IntermediateAssembly); 
          $(NonExistentFile)"
    DependsOnTargets="$(WorkflowCompilationDependsOn)">

<ItemGroup>
       <WFCompilationOptions Include="define" Condition="'$(DefineConstants)' != ''">
          <value>$(DefineConstants)</value>
          <delimiter>:</delimiter>
       </WFCompilationOptions>
       <WFCompilationOptions Include="optioninfer" Condition="'$(OptionInfer)' == 'On'">
          <value>+</value>
       </WFCompilationOptions>
       <WFCompilationOptions Include="optioninfer" Condition="'$(OptionInfer)' == 'Off'">
          <value>-</value>
       </WFCompilationOptions>
       <WFCompilationOptions Include="optionexplicit" Condition="'$(OptionExplicit)' == 'On'">
          <value>+</value>
       </WFCompilationOptions>
       <WFCompilationOptions Include="optionexplicit" Condition="'$(OptionExplicit)' == 'Off'">
          <value>-</value>
       </WFCompilationOptions>
       <WFCompilationOptions Include="optionstrict" Condition="'$(OptionStrict)' == 'On'">
          <value>+</value>
       </WFCompilationOptions>
       <WFCompilationOptions Include="optionstrict" Condition="'$(OptionStrict)' == 'Off'">
          <value>-</value>
       </WFCompilationOptions>
       <WFCompilationOptions Include="optioncompare" Condition="'$(OptionStrict)' == 'Binary'">
          <value>binary</value>
          <delimiter>:</delimiter>
       </WFCompilationOptions>
       <WFCompilationOptions Include="optioncompare" Condition="'$(OptionStrict)' == 'Text'">
          <value>text</value>
          <delimiter>:</delimiter>
       </WFCompilationOptions>
       <WFCompilationOptions Include="nowarn" Condition="'$(NoWarn)' != ''">
          <value>$(NoWarn)</value>
          <delimiter>:</delimiter>
       </WFCompilationOptions>
    </ItemGroup>

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