fix system.text.json build error

Author: LittleLittleCloud

docs/samples/Microsoft.ML.Samples.GPU/Microsoft.ML.Samples.GPU.csproj

@@ -44,6 +44,7 @@
 
   <ItemGroup>
     <PackageReference Include="Microsoft.ML.Onnx.TestModels" Version="$(MicrosoftMLOnnxTestModelsVersion)" />
+    <PackageReference Include="System.Text.Json" Version="$(SystemTextJsonVersion)" />
   </ItemGroup>
   <ItemGroup Condition=" '$(OS)' == 'Windows_NT'">
     <PackageReference Include="SciSharp.TensorFlow.Redist-Windows-GPU" Version="$(TensorFlowVersion)" />

docs/samples/Microsoft.ML.Samples/Microsoft.ML.Samples.csproj

@@ -977,6 +977,7 @@
     <PackageReference Include="Microsoft.ML.Onnx.TestModels" Version="$(MicrosoftMLOnnxTestModelsVersion)" />
     <PackageReference Include="SciSharp.TensorFlow.Redist" Version="$(TensorFlowVersion)" />
     <PackageReference Include="Microsoft.ML.OnnxRuntime" Version="$(MicrosoftMLOnnxRuntimeVersion)" />
+    <PackageReference Include="System.Text.Json" Version="$(SystemTextJsonVersion)" />
   </ItemGroup>
 
     <ItemGroup>

src/Microsoft.ML.Console/Microsoft.ML.Console.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <OutputType>Exe</OutputType>
     <AssemblyName>MML</AssemblyName>
     <StartupObject>Microsoft.ML.Tools.Console.Console</StartupObject>
@@ -27,6 +27,7 @@
     <ProjectReference Include="..\Microsoft.ML.Sweeper\Microsoft.ML.Sweeper.csproj" />
     <ProjectReference Include="..\Microsoft.ML.TensorFlow\Microsoft.ML.TensorFlow.csproj" />
     <ProjectReference Include="..\Microsoft.ML.Transforms\Microsoft.ML.Transforms.csproj" />
+    <PackageReference Include="System.Text.Json" Version="$(SystemTextJsonVersion)" />
 
     <NativeAssemblyReference Include="FastTreeNative" />
     <NativeAssemblyReference Include="CpuMathNative" />

src/Microsoft.ML.SearchSpace/Microsoft.ML.SearchSpace.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <TargetFramework>netstandard2.0</TargetFramework>
-    <IncludeInPackage>Microsoft.ML.AutoML</IncludeInPackage>
+    <IncludeInPackage>Microsoft.ML.Core</IncludeInPackage>
     <DisableImplicitNamespaceImports>true</DisableImplicitNamespaceImports>
     <NoWarn>MSML_ContractsCheckMessageNotLiteralOrIdentifier</NoWarn>
     <LangVersion>9.0</LangVersion>