[dotnet] Use net5.0-[ios|tvos|watchos|macos] TargetFrameworks. (#9532)

* [dotnet] Set TargetPlatformSupported when the right TargetPlatformIdentifier is used.

* [dotnet] Generate a list of valid OS versions for each platform, and add it to the SupportedTargetPlatform item group.

The generated files: https://gist.github.com/rolfbjarne/765c4e4b38b1b017380c9378d9666317

* [dotnet] Define and set the default platform version if it's not set in the TargetFramework variable.

* [dotnet] Switch to using the new-style TargetFramework values.

This includes bumping spouliot/Touch.Unit to get new-style TargetFramework values for Touch.Client.

* xamarin/Touch.Unit@89afaf7 [Touch.Client] Use the right TargetFrameworks for watchOS and macOS as well. (#92)
* xamarin/Touch.Unit@fd0e576 [Touch.Client] Use the right TargetFrameworks. (#91)
* xamarin/Touch.Unit@40f47db [Touch.Client] Add a macOS and watchOS version for .NET. (#90)
* xamarin/Touch.Unit@1d4b8c0 Add .gitignore for NuGet.config and global.json. (#89)
* xamarin/Touch.Unit@49441f3 Call `mlaunch` instead of `mtouch` (#88)
* xamarin/Touch.Unit@b157cf4 Fix a few markdown issues found by markdownlint. (#87)

Diff: https://github.com/spouliot/Touch.Unit/compare/d7f55a61673e18ae5a8f9628600081a54b4e074c..89afaf7e05a942c87231cf5601b3a5b59640e218

* [dotnet] Document the script that generates the lists of the target platform versions a little bit better.

* [dotnet] Make the [Platform]SupportedTargetPlatform variables public.

This matches how Android and Windows do it:

* dotnet/android#5007
* https://github.com/dotnet/sdk/blob/18ee4eac8b3abe6d554d2e0c39d8952da0f23ce5/src/Tasks/Microsoft.NET.Build.Tasks/targets/Microsoft.NET.WindowsSupportedTargetPlatforms.props

* [xharness] Update the TargetFramework value when creating project variations.

dotnet/.gitignore

@@ -1,2 +1,3 @@
 nupkgs
+Microsoft.*.Sdk/targets/Microsoft.*.Sdk.SupportedTargetPlatforms.props
 

dotnet/Makefile

@@ -7,6 +7,7 @@ define DefineTargets
 $(1)_NUGET_TARGETS = \
 	$(DOTNET_DESTDIR)/Microsoft.$(1).Sdk/Sdk/Sdk.targets \
 	$(DOTNET_DESTDIR)/Microsoft.$(1).Sdk/Sdk/Sdk.props \
+	$(DOTNET_DESTDIR)/Microsoft.$(1).Sdk/targets/Microsoft.$(1).Sdk.SupportedTargetPlatforms.props \
 	$(DOTNET_DESTDIR)/Microsoft.$(1).Sdk/targets/Microsoft.$(1).Sdk.DefaultItems.props \
 	$(DOTNET_DESTDIR)/Microsoft.$(1).Sdk/targets/Microsoft.$(1).Sdk.props \
 	$(DOTNET_DESTDIR)/Microsoft.$(1).Sdk/targets/Microsoft.$(1).Sdk.targets \
@@ -61,8 +62,17 @@ targets/%.props: targets/%.template.props Makefile $(TOP)/Make.config.inc $(TOP)
 		-e "s/@CURRENT_HASH_LONG@/$(CURRENT_HASH_LONG)/g" \
 	$< > $@
 
+define SupportedTargetPlatforms
+Microsoft.$(1).Sdk/targets/Microsoft.$(1).Sdk.SupportedTargetPlatforms.props: $(TOP)/Versions-ios.plist.in $(TOP)/Versions-mac.plist.in Makefile ./generate-target-platforms.csharp Makefile
+	$(Q) rm -f $$@.tmp
+	$(Q) ./generate-target-platforms.csharp $(1) $$@.tmp
+	$(Q) mv $$@.tmp $$@
+endef
+$(foreach platform,$(DOTNET_PLATFORMS),$(eval $(call SupportedTargetPlatforms,$(platform))))
+
 TEMPLATED_FILES = \
 	targets/Xamarin.Shared.Sdk.Versions.props \
+	$(foreach platform,$(DOTNET_PLATFORMS),Microsoft.$(platform).Sdk/targets/Microsoft.$(platform).Sdk.SupportedTargetPlatforms.props) \
 
 nupkgs/$(IOS_NUGET).%.nupkg: CURRENT_VERSION_NO_METADATA=$(IOS_NUGET_VERSION_NO_METADATA)
 nupkgs/$(TVOS_NUGET).%.nupkg: CURRENT_VERSION_NO_METADATA=$(TVOS_NUGET_VERSION_NO_METADATA)

dotnet/generate-target-platforms.csharp

@@ -0,0 +1,43 @@
+#!/usr/bin/env /Library/Frameworks/Mono.framework/Commands/csharp
+
+// arguments are: <platform> <outputPath>
+
+using System.IO;
+using System.Xml;
+
+var args = Environment.GetCommandLineArgs ();
+var expectedArgumentCount = 2;
+if (args.Length != expectedArgumentCount + 2 /* 2 default arguments (executable + script) + 'expectedArgumentCount' arguments we're interested in */) {
+	// first arg is "/Library/Frameworks/Mono.framework/Versions/4.8.0/lib/mono/4.5/csharp.exe"
+	// second arg the script itself
+	// then comes the ones we care about
+	Console.WriteLine ($"Need {expectedArgumentCount} arguments, got {args.Length - 2}");
+	Environment.Exit (1);
+	return;
+}
+
+var platform = args [2];
+var outputPath = args [3];
+var plistPath = platform == "macOS" ? "../Versions-mac.plist.in" : "../Versions-ios.plist.in";
+
+var doc = new XmlDocument ();
+doc.Load (plistPath);
+var nodes = doc.SelectNodes ($"/plist/dict/key[text()='KnownVersions']/following-sibling::dict[1]/key[text()='{platform}']/following-sibling::array[1]/string");
+
+using (TextWriter writer = new StreamWriter (outputPath)) {
+	writer.WriteLine ($"<!-- This file contains a generated list of the {platform} platform versions that are supported for this SDK -->");
+	writer.WriteLine ($"<!-- Generation script: https://github.com/xamarin/xamarin-macios/blob/main/dotnet/generate-target-platforms.csharp -->");
+	writer.WriteLine ("<Project>");
+	writer.WriteLine ("\t<ItemGroup>");
+
+	foreach (XmlNode n in nodes)
+		writer.WriteLine ($"\t\t<{platform}SupportedTargetPlatform Include=\"{n.InnerText}\" />");
+
+	writer.WriteLine ("\t</ItemGroup>");
+	writer.WriteLine ("\t<ItemGroup>");
+	writer.WriteLine ($"\t\t<SupportedTargetPlatform Condition=\"'$(TargetPlatformIdentifier)' == '{platform}'\" Include=\"@({platform}SupportedTargetPlatform)\" />");
+	writer.WriteLine ("\t</ItemGroup>");
+	writer.WriteLine ("</Project>");
+}
+
+Environment.Exit (0);

dotnet/targets/Xamarin.Shared.Sdk.TargetFrameworkInference.targets

@@ -8,4 +8,18 @@
     <_TargetFrameworkPlatform Condition="'$(_PlatformName)' == 'macOS'">macos</_TargetFrameworkPlatform>
     <_ComputedTargetFrameworkMoniker Condition=" '$(_TargetFrameworkPlatform)' != '' ">$(TargetFrameworkMoniker),Profile=$(_TargetFrameworkPlatform)</_ComputedTargetFrameworkMoniker>
   </PropertyGroup>
+
+  <!-- Normalize the casing of TargetPlatformIdentifier to Apple's casing -->
+  <!-- Ref: https://github.com/dotnet/designs/blob/8e6394406d44f75f30ea2259a425cb9e38d75b69/accepted/2020/net5/net5.md#valid-platforms -->
+  <PropertyGroup>
+    <TargetPlatformIdentifier Condition="'$(TargetPlatformIdentifier)' == 'ios'">iOS</TargetPlatformIdentifier>
+    <TargetPlatformIdentifier Condition="'$(TargetPlatformIdentifier)' == 'tvos'">tvOS</TargetPlatformIdentifier>
+    <TargetPlatformIdentifier Condition="'$(TargetPlatformIdentifier)' == 'watchos'">watchOS</TargetPlatformIdentifier>
+    <TargetPlatformIdentifier Condition="'$(TargetPlatformIdentifier)' == 'macos'">macOS</TargetPlatformIdentifier>
+  </PropertyGroup>
+
+  <!-- Set the default TargetPlatformVersion if it wasn't specified in the TargetFramework variable. This must be set after importing Sdk.targets (in Xamarin.Shared.Sdk.targets) -->
+  <PropertyGroup>
+    <TargetPlatformVersion Condition="'$(TargetPlatformVersion)' == ''">$(_DefaultTargetPlatformVersion)</TargetPlatformVersion>
+  </PropertyGroup>
 </Project>

dotnet/targets/Xamarin.Shared.Sdk.Versions.template.props

@@ -14,4 +14,18 @@
 		<_PackageVersion Condition=" '$(_PlatformName)' == 'watchOS' ">@WATCHOS_NUGET_VERSION_FULL@</_PackageVersion>
 		<_PackageVersion Condition=" '$(_PlatformName)' == 'macOS' ">@MACOS_NUGET_VERSION_FULL@</_PackageVersion>
 	</PropertyGroup>
+
+	<!-- Defines the default platform version if it's not specified in the TFM. The default should not change for a given .NET version:
+	     * We release support for iOS 14.5 with .NET 6
+	     * Apple releases iOS 15.0, we're still using .NET 6. This default continues to be iOS 14.5
+	     * .NET 7 is shipped, and at this point we bump the default to iOS 15.0
+	     Ref: https://github.com/dotnet/designs/blob/8e6394406d44f75f30ea2259a425cb9e38d75b69/accepted/2020/net5/net5.md#os-versions
+	-->
+	<PropertyGroup>
+		<!-- This section specifies the default platform version for .NET 5.0 -->
+		<_DefaultTargetPlatformVersion Condition=" '$(_PlatformName)' == 'iOS' ">13.6</_DefaultTargetPlatformVersion>
+		<_DefaultTargetPlatformVersion Condition=" '$(_PlatformName)' == 'tvOS' ">13.4</_DefaultTargetPlatformVersion>
+		<_DefaultTargetPlatformVersion Condition=" '$(_PlatformName)' == 'watchOS' ">6.2</_DefaultTargetPlatformVersion>
+		<_DefaultTargetPlatformVersion Condition=" '$(_PlatformName)' == 'macOS' ">10.15</_DefaultTargetPlatformVersion>
+	</PropertyGroup>
 </Project>

dotnet/targets/Xamarin.Shared.Sdk.props

@@ -12,4 +12,7 @@
 
   <!-- Default item includes (globs and implicit references) -->
   <Import Project="Microsoft.$(_PlatformName).Sdk.DefaultItems.props" />
+
+  <!-- This contains the OS versions we support for target platform -->
+  <Import Project="Microsoft.$(_PlatformName).Sdk.SupportedTargetPlatforms.props" />
 </Project>

dotnet/targets/Xamarin.Shared.Sdk.targets

@@ -73,6 +73,10 @@
 
 	<Import Sdk="Microsoft.NET.Sdk" Project="Sdk.targets" />
 
+	<PropertyGroup>
+		<TargetPlatformSupported Condition=" '$(TargetPlatformIdentifier)' == '$(_PlatformName)' ">true</TargetPlatformSupported>
+	</PropertyGroup>
+
 	<!-- Default item includes (globs and implicit references) -->
 	<Import Project="Xamarin.Shared.Sdk.DefaultItems.targets" />
 	<Import Project="Xamarin.Shared.Sdk.TargetFrameworkInference.targets" />

tests/BundledResources/dotnet/iOS/BundledResources.csproj

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.iOS.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net5.0-ios</TargetFramework>
+    <LangVersion>latest</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="NUnitLite" Version="3.12.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <BundleResource Include="..\..\..\monotouch-test\basn3p08.png">
+      <Link>basn3p08.png</Link>
+    </BundleResource>
+    <BundleResource Include="..\..\..\monotouch-test\xamvideotest.mp4">
+      <Link>xamvideotest.mp4</Link>
+    </BundleResource>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="..\..\ResourcesTest.cs" />
+  </ItemGroup>
+</Project>

tests/BundledResources/dotnet/macOS/BundledResources.csproj

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.macOS.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net5.0-macos</TargetFramework>
+    <LangVersion>latest</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="NUnitLite" Version="3.12.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <BundleResource Include="..\..\..\monotouch-test\basn3p08.png">
+      <Link>basn3p08.png</Link>
+    </BundleResource>
+    <BundleResource Include="..\..\..\monotouch-test\xamvideotest.mp4">
+      <Link>xamvideotest.mp4</Link>
+    </BundleResource>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="..\..\ResourcesTest.cs" />
+  </ItemGroup>
+</Project>

tests/BundledResources/dotnet/tvOS/BundledResources.csproj

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.tvOS.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net5.0-tvos</TargetFramework>
+    <LangVersion>latest</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="NUnitLite" Version="3.12.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <BundleResource Include="..\..\..\monotouch-test\basn3p08.png">
+      <Link>basn3p08.png</Link>
+    </BundleResource>
+    <BundleResource Include="..\..\..\monotouch-test\xamvideotest.mp4">
+      <Link>xamvideotest.mp4</Link>
+    </BundleResource>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="..\..\ResourcesTest.cs" />
+  </ItemGroup>
+</Project>

tests/BundledResources/dotnet/watchOS/BundledResources.csproj

@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.watchOS.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net5.0-watchos</TargetFramework>
+    <LangVersion>latest</LangVersion>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="NUnitLite" Version="3.12.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <BundleResource Include="..\..\..\monotouch-test\basn3p08.png">
+      <Link>basn3p08.png</Link>
+    </BundleResource>
+    <BundleResource Include="..\..\..\monotouch-test\xamvideotest.mp4">
+      <Link>xamvideotest.mp4</Link>
+    </BundleResource>
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="..\..\ResourcesTest.cs" />
+  </ItemGroup>
+</Project>

tests/EmbeddedResources/dotnet/iOS/EmbeddedResources.csproj

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.iOS.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net5.0-ios</TargetFramework>
+  </PropertyGroup>
+  <Import Project="..\shared.targets" />
+</Project>

tests/EmbeddedResources/dotnet/macOS/EmbeddedResources.csproj

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.macOS.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net5.0-macos</TargetFramework>
+  </PropertyGroup>
+  <Import Project="..\shared.targets" />
+</Project>

tests/EmbeddedResources/dotnet/shared.targets

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project>
+	<PropertyGroup>
+		<SignAssembly>true</SignAssembly>
+		<LangVersion>latest</LangVersion>
+
+		<RootTestsDirectory>$(MSBuildThisFileDirectory)\..\..</RootTestsDirectory>
+		<EmbeddedResourcesTestDirectory>$(RootTestsDirectory)\EmbeddedResources</EmbeddedResourcesTestDirectory>
+
+		<AssemblyOriginatorKeyFile>$(RootTestsDirectory)\..\product.snk</AssemblyOriginatorKeyFile>
+	</PropertyGroup>
+
+	<ItemGroup>
+		<PackageReference Include="NUnitLite" Version="3.12.0" />
+	</ItemGroup>
+
+	<ItemGroup>
+		<Compile Include="$(EmbeddedResourcesTestDirectory)\ResourcesTest.cs" />
+		<Compile Include="$(RootTestsDirectory)\common\TestRuntime.cs">
+			<Link>TestRuntime.cs</Link>
+		</Compile>
+	</ItemGroup>
+
+	<ItemGroup>
+		<EmbeddedResource Include="$(EmbeddedResourcesTestDirectory)\Welcome.resx">
+			<LogicalName>EmbeddedResources.Welcome.resources</LogicalName>
+		</EmbeddedResource>
+		<EmbeddedResource Include="$(EmbeddedResourcesTestDirectory)\Welcome.en-AU.resx">
+			<LogicalName>EmbeddedResources.Welcome.en-AU.resources</LogicalName>
+		</EmbeddedResource>
+		<EmbeddedResource Include="$(EmbeddedResourcesTestDirectory)\Welcome.es.resx">
+			<LogicalName>EmbeddedResources.Welcome.es.resources</LogicalName>
+		</EmbeddedResource>
+		<EmbeddedResource Include="$(EmbeddedResourcesTestDirectory)\Welcome.de.resx">
+			<LogicalName>EmbeddedResources.Welcome.de.resources</LogicalName>
+		</EmbeddedResource>
+	</ItemGroup>
+</Project>

tests/EmbeddedResources/dotnet/tvOS/EmbeddedResources.csproj

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.tvOS.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net5.0-tvos</TargetFramework>
+  </PropertyGroup>
+  <Import Project="..\shared.targets" />
+</Project>

tests/EmbeddedResources/dotnet/watchOS/EmbeddedResources.csproj

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.watchOS.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net5.0-watchos</TargetFramework>
+  </PropertyGroup>
+  <Import Project="..\shared.targets" />
+</Project>

tests/bindings-test/dotnet/iOS/bindings-test.csproj

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.iOS.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net5.0-ios</TargetFramework>
+    <NativeLibName>ios-fat</NativeLibName>
+  </PropertyGroup>
+  <Import Project="..\shared.targets" />
+</Project>

tests/bindings-test/dotnet/macOS/bindings-test.csproj

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.macOS.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net5.0-macos</TargetFramework>
+    <NativeLibName>macos</NativeLibName>
+  </PropertyGroup>
+  <Import Project="..\shared.targets" />
+</Project>

tests/bindings-test/dotnet/shared.targets

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project>
   <PropertyGroup>
-    <TargetFramework>net5.0</TargetFramework>
     <RootNamespace>bindingstest</RootNamespace>
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>..\..\..\..\product.snk</AssemblyOriginatorKeyFile>

tests/bindings-test/dotnet/tvOS/bindings-test.csproj

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.tvOS.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net5.0-tvos</TargetFramework>
+    <NativeLibName>tvos-fat</NativeLibName>
+  </PropertyGroup>
+  <Import Project="..\shared.targets" />
+</Project>

tests/bindings-test/dotnet/watchOS/bindings-test.csproj

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project Sdk="Microsoft.watchOS.Sdk">
+  <PropertyGroup>
+    <TargetFramework>net5.0-watchos</TargetFramework>
+    <NativeLibName>watchos-fat</NativeLibName>
+  </PropertyGroup>
+  <Import Project="..\shared.targets" />
+</Project>

tests/bindings-test2/dotnet/iOS/bindings-test2.csproj

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.iOS.Sdk">
   <PropertyGroup>
+    <TargetFramework>net5.0-ios</TargetFramework>
     <NativeLibName>ios-fat</NativeLibName>
     <PlatformName>iOS</PlatformName>
     <RootTestsDirectory>..\..\..</RootTestsDirectory>

tests/bindings-test2/dotnet/macOS/bindings-test2.csproj

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.macOS.Sdk">
   <PropertyGroup>
+    <TargetFramework>net5.0-macos</TargetFramework>
     <NativeLibName>macos</NativeLibName>
     <PlatformName>macOS</PlatformName>
     <RootTestsDirectory>..\..\..</RootTestsDirectory>

tests/bindings-test2/dotnet/shared.targets

@@ -1,7 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project>
   <PropertyGroup>
-    <TargetFramework>net5.0</TargetFramework>
     <RootNamespace>bindingstest2</RootNamespace>
     <SignAssembly>true</SignAssembly>
     <AssemblyOriginatorKeyFile>..\..\..\..\product.snk</AssemblyOriginatorKeyFile>

tests/bindings-test2/dotnet/tvOS/bindings-test2.csproj

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.tvOS.Sdk">
   <PropertyGroup>
+    <TargetFramework>net5.0-tvos</TargetFramework>
     <NativeLibName>tvos-fat</NativeLibName>
     <PlatformName>tvOS</PlatformName>
     <RootTestsDirectory>..\..\..</RootTestsDirectory>

tests/bindings-test2/dotnet/watchOS/bindings-test2.csproj

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.watchOS.Sdk">
   <PropertyGroup>
+    <TargetFramework>net5.0-watchos</TargetFramework>
     <NativeLibName>watchos-fat</NativeLibName>
     <PlatformName>watchOS</PlatformName>
     <RootTestsDirectory>..\..\..</RootTestsDirectory>

tests/dotnet/MyClassLibrary/MyClassLibrary.csproj

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.iOS.Sdk">
   <PropertyGroup>
-    <TargetFramework>net5.0</TargetFramework>
+    <TargetFramework>net5.0-ios</TargetFramework>
   </PropertyGroup>
 </Project>