mac samples: fixup and add logging

samples/LibVLCSharp.Mac.Sample/LibVLCSharp.Mac.Sample.csproj

@@ -99,11 +99,5 @@
     </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildExtensionsPath)\Xamarin\Mac\Xamarin.Mac.CSharp.targets" />
-  <Import Project="..\..\packages\VideoLAN.LibVLC.Mac.3.1.3\build\VideoLAN.LibVLC.Mac.targets" Condition="Exists('..\..\packages\VideoLAN.LibVLC.Mac.3.1.3\build\VideoLAN.LibVLC.Mac.targets')" />
-  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
-    <PropertyGroup>
-      <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
-    </PropertyGroup>
-    <Error Condition="!Exists('..\..\packages\VideoLAN.LibVLC.Mac.3.1.3\build\VideoLAN.LibVLC.Mac.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\..\packages\VideoLAN.LibVLC.Mac.3.1.3\build\VideoLAN.LibVLC.Mac.targets'))" />
-  </Target>
+  <Import Project="..\..\src\packages\VideoLAN.LibVLC.Mac.3.2.1.3\build\VideoLAN.LibVLC.Mac.targets" Condition="Exists('..\..\src\packages\VideoLAN.LibVLC.Mac.3.2.1.3\build\VideoLAN.LibVLC.Mac.targets')" />
 </Project>
\ No newline at end of file

samples/LibVLCSharp.Mac.Sample/ViewController.cs

@@ -24,7 +24,7 @@ namespace LibVLCSharp.Mac.Sample
 
             Core.Initialize();
 
-            _libVLC = new LibVLC();
+            _libVLC = new LibVLC("--verbose=2");
             _mediaPlayer = new Shared.MediaPlayer(_libVLC);
 
             _videoView = new VideoView { MediaPlayer = _mediaPlayer };

samples/LibVLCSharp.NetCore.Sample/LibVLCSharp.NetCore.Sample.csproj

 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.0</TargetFramework>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <Platforms>AnyCPU;x64;x86</Platforms>
     <RuntimeIdentifiers>win7-x64;win7-x86;osx-x64</RuntimeIdentifiers>
     <LangVersion>8.0</LangVersion>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="VideoLAN.LibVLC.Windows" Version="3.0.8" />
-    <PackageReference Include="VideoLAN.LibVLC.Mac" Version="3.1.3" />
+    <PackageReference Condition="$([MSBuild]::IsOsPlatform('Windows'))" Include="VideoLAN.LibVLC.Windows" Version="3.0.8" />
+    <PackageReference Condition="$([MSBuild]::IsOsPlatform('OSX'))" Include="VideoLAN.LibVLC.Mac" Version="3.1.3" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\src\LibVLCSharp\LibVLCSharp.csproj" />