diff --git a/LibSVMSharp.Tests/Contants.cs b/LibSVMSharp.Tests/Contants.cs
index cd0e6ac..5ab3cc7 100644
--- a/LibSVMSharp.Tests/Contants.cs
+++ b/LibSVMSharp.Tests/Contants.cs
@@ -1,10 +1,4 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Text;
-using System.Threading.Tasks;
-
-namespace LibSVMSharp.Tests
+namespace LibSVMSharp.Tests
 {
     public static class Contants
     {
diff --git a/LibSVMSharp.Tests/Extensions/TestSVMProblemExtensions.cs b/LibSVMSharp.Tests/Extensions/TestSVMProblemExtensions.cs
index 2487cca..2356ef2 100644
--- a/LibSVMSharp.Tests/Extensions/TestSVMProblemExtensions.cs
+++ b/LibSVMSharp.Tests/Extensions/TestSVMProblemExtensions.cs
@@ -1,12 +1,11 @@
-using System;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
+using NUnit.Framework;
 
 namespace LibSVMSharp.Tests.Extensions
 {
-    [TestClass]
+    [TestFixture]
     public class TestSVMProblemExtensions
     {
-        [TestMethod]
+        [Test]
         public void TestMethod1()
         {
         }
diff --git a/LibSVMSharp.Tests/Helpers/TestSVMHelper.cs b/LibSVMSharp.Tests/Helpers/TestSVMHelper.cs
index 24424ed..1b38605 100644
--- a/LibSVMSharp.Tests/Helpers/TestSVMHelper.cs
+++ b/LibSVMSharp.Tests/Helpers/TestSVMHelper.cs
@@ -1,12 +1,11 @@
-using System;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
+using NUnit.Framework;
 
 namespace LibSVMSharp.Tests.Helpers
 {
-    [TestClass]
+	[TestFixture]
     public class TestSVMHelper
     {
-        [TestMethod]
+        [Test]
         public void TestMethod1()
         {
         }
diff --git a/LibSVMSharp.Tests/Helpers/TestSVMNodeHelper.cs b/LibSVMSharp.Tests/Helpers/TestSVMNodeHelper.cs
index f88939f..fbfc3fb 100644
--- a/LibSVMSharp.Tests/Helpers/TestSVMNodeHelper.cs
+++ b/LibSVMSharp.Tests/Helpers/TestSVMNodeHelper.cs
@@ -1,12 +1,11 @@
-using System;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
+using NUnit.Framework;
 
 namespace LibSVMSharp.Tests.Helpers
 {
-    [TestClass]
+	[TestFixture]
     public class TestSVMNodeHelper
     {
-        [TestMethod]
+        [Test]
         public void TestMethod1()
         {
         }
diff --git a/LibSVMSharp.Tests/Helpers/TestSVMProblemHelper.cs b/LibSVMSharp.Tests/Helpers/TestSVMProblemHelper.cs
index 9644cb6..b50f897 100644
--- a/LibSVMSharp.Tests/Helpers/TestSVMProblemHelper.cs
+++ b/LibSVMSharp.Tests/Helpers/TestSVMProblemHelper.cs
@@ -1,12 +1,11 @@
-using System;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
+using NUnit.Framework;
 
 namespace LibSVMSharp.Tests.Helpers
 {
-    [TestClass]
+	[TestFixture]
     public class TestSVMProblemHelper
     {
-        [TestMethod]
+        [Test]
         public void TestMethod1()
         {
         }
diff --git a/LibSVMSharp.Tests/LibSVMSharp.Tests.csproj b/LibSVMSharp.Tests/LibSVMSharp.Tests.csproj
index c034656..1b707ac 100644
--- a/LibSVMSharp.Tests/LibSVMSharp.Tests.csproj
+++ b/LibSVMSharp.Tests/LibSVMSharp.Tests.csproj
@@ -1,101 +1,21 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ProjectGuid>{2DE0BD3C-C37B-4B23-9533-2F91C1DD15C3}</ProjectGuid>
-    <OutputType>Library</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>LibSVMSharp.Tests</RootNamespace>
-    <AssemblyName>LibSVMSharp.Tests</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
-    <FileAlignment>512</FileAlignment>
-    <ProjectTypeGuids>{3AC096D0-A1C2-E12C-1390-A8335801FDAB};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
-    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">10.0</VisualStudioVersion>
-    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
-    <ReferencePath>$(ProgramFiles)\Common Files\microsoft shared\VSTT\$(VisualStudioVersion)\UITestExtensionPackages</ReferencePath>
-    <IsCodedUITest>False</IsCodedUITest>
-    <TestProjectType>UnitTest</TestProjectType>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <PlatformTarget>x64</PlatformTarget>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <PlatformTarget>x64</PlatformTarget>
-  </PropertyGroup>
+<Project Sdk="Microsoft.NET.Sdk">
+	<PropertyGroup>
+		<TargetFramework>net5.0</TargetFramework>
+		<OutputType>Exe</OutputType>
+		<SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
+		<RestorePackages>true</RestorePackages>
+		<GenerateAssemblyInfo>false</GenerateAssemblyInfo>
+		<PlatformTarget>x64</PlatformTarget>
+	</PropertyGroup>
   <ItemGroup>
-    <Reference Include="System" />
+    <ProjectReference Include="..\LibSVMsharp\LibSVMsharp.csproj" />
   </ItemGroup>
-  <Choose>
-    <When Condition="('$(VisualStudioVersion)' == '10.0' or '$(VisualStudioVersion)' == '') and '$(TargetFrameworkVersion)' == 'v3.5'">
-      <ItemGroup>
-        <Reference Include="Microsoft.VisualStudio.QualityTools.UnitTestFramework, Version=10.1.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL" />
-      </ItemGroup>
-    </When>
-    <Otherwise>
-      <ItemGroup>
-        <Reference Include="Microsoft.VisualStudio.QualityTools.UnitTestFramework" />
-      </ItemGroup>
-    </Otherwise>
-  </Choose>
   <ItemGroup>
-    <Compile Include="Contants.cs" />
-    <Compile Include="Extensions\TestSVMProblemExtensions.cs" />
-    <Compile Include="Helpers\TestSVMHelper.cs" />
-    <Compile Include="Helpers\TestSVMNodeHelper.cs" />
-    <Compile Include="Helpers\TestSVMProblemHelper.cs" />
-    <Compile Include="TestSVM.cs" />
-    <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="TestSVMModel.cs" />
-    <Compile Include="TestSVMNode.cs" />
-    <Compile Include="TestSVMParameter.cs" />
-    <Compile Include="TestSVMProblem.cs" />
+    <Compile Remove="Extensions\SVMModelExtensionsTests.cs" />
+    <Compile Remove="Extensions\SVMNodeExtensionsTests.cs" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\LibSVMsharp\LibSVMsharp.csproj">
-      <Project>{ac04337c-e542-4be9-8dbd-5b44535299e2}</Project>
-      <Name>LibSVMsharp</Name>
-    </ProjectReference>
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.4" />
+    <PackageReference Include="NUnit" Version="3.13.2" />
   </ItemGroup>
-  <ItemGroup />
-  <Choose>
-    <When Condition="'$(VisualStudioVersion)' == '10.0' And '$(IsCodedUITest)' == 'True'">
-      <ItemGroup>
-        <Reference Include="Microsoft.VisualStudio.QualityTools.CodedUITestFramework, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-          <Private>False</Private>
-        </Reference>
-        <Reference Include="Microsoft.VisualStudio.TestTools.UITest.Common, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-          <Private>False</Private>
-        </Reference>
-        <Reference Include="Microsoft.VisualStudio.TestTools.UITest.Extension, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-          <Private>False</Private>
-        </Reference>
-        <Reference Include="Microsoft.VisualStudio.TestTools.UITesting, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a, processorArchitecture=MSIL">
-          <Private>False</Private>
-        </Reference>
-      </ItemGroup>
-    </When>
-  </Choose>
-  <Import Project="$(VSToolsPath)\TeamTest\Microsoft.TestTools.targets" Condition="Exists('$(VSToolsPath)\TeamTest\Microsoft.TestTools.targets')" />
-  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
-       Other similar extension points exist, see Microsoft.Common.targets.
-  <Target Name="BeforeBuild">
-  </Target>
-  <Target Name="AfterBuild">
-  </Target>
-  -->
 </Project>
\ No newline at end of file
diff --git a/LibSVMSharp.Tests/TestSVM.cs b/LibSVMSharp.Tests/TestSVM.cs
index b5f21ff..fc589e2 100644
--- a/LibSVMSharp.Tests/TestSVM.cs
+++ b/LibSVMSharp.Tests/TestSVM.cs
@@ -1,23 +1,22 @@
 using System;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
 using LibSVMsharp;
+using NUnit.Framework;
 
 namespace LibSVMSharp.Tests
 {
-    [TestClass]
+    [TestFixture]
     public class TestSVM
     {
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_Train_ProblemIsNull_ThrowsException()
         {
-            SVM.Train(null, new SVMParameter());
+            Assert.Throws<ArgumentNullException>(()=> SVM.Train(null, new SVMParameter()));
         }
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+
+        [Test]
         public void SVM_Train_ParameterIsNull_ThrowsException()
         {
-            SVM.Train(new SVMProblem(), null);
+            Assert.Throws<ArgumentNullException>(() => SVM.Train(new SVMProblem(), null));
         }
         //[TestMethod]
         public void SVM_Train_Correct()
@@ -25,26 +24,23 @@ public void SVM_Train_Correct()
 
         }
 
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_CrossValidation_ProblemIsNull_ThrowsException()
         {
             double[] target;
-            SVM.CrossValidation(null, new SVMParameter(), 5, out target);
+            Assert.Throws<ArgumentNullException>(() => SVM.CrossValidation(null, new SVMParameter(), 5, out target));
         }
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_CrossValidation_ParameterIsNull_ThrowsException()
         {
             double[] target;
-            SVM.CrossValidation(new SVMProblem(), null, 5, out target);
+            Assert.Throws<ArgumentNullException>(() => SVM.CrossValidation(new SVMProblem(), null, 5, out target));
         }
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentOutOfRangeException))]
+        [Test]
         public void SVM_CrossValidation_FoldNumberIsOutOfRange_ThrowsException()
         {
             double[] target;
-            SVM.CrossValidation(new SVMProblem(), new SVMParameter(), 1, out target);
+            Assert.Throws<ArgumentOutOfRangeException>(() => SVM.CrossValidation(new SVMProblem(), new SVMParameter(), 1, out target));
         }
         //[TestMethod]
         public void SVM_CrossValidation_Correct()
@@ -52,14 +48,14 @@ public void SVM_CrossValidation_Correct()
 
         }
 
-        [TestMethod]
+        [Test]
         public void SVM_SaveModel_ModelIsNull_ReturnsFalse()
         {
             bool success = SVM.SaveModel(null, Contants.CORRECT_MODEL_PATH_TO_BE_SAVED);
 
             Assert.IsFalse(success);
         }
-        [TestMethod]
+        [Test]
         public void SVM_SaveModel_FilenameIsInvalid_ReturnsFalse()
         {
             bool success = SVM.SaveModel(new SVMModel(), "");
@@ -72,12 +68,12 @@ public void SVM_SaveModel_Correct()
 
         }
 
-        [TestMethod]
+        [Test]
         public void SVM_LoadModel_FilenameIsInvalid_ReturnsNull()
         {
             SVM.LoadModel("");
         }
-        [TestMethod]
+        [Test]
         public void SVM_LoadModel_FilenameDoesNotExist_ReturnsNull()
         {
             SVM.LoadModel(Contants.WRONG_MODEL_PATH_TO_BE_LOADED);
@@ -93,26 +89,23 @@ public void SVM_LoadModel_Correct()
 
         }
 
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_PredictValues_ModelIsNull_ThrowsException()
         {
             double[] values;
-            SVM.PredictValues(null, new SVMNode[5], out values);
+            Assert.Throws<ArgumentNullException>(() => SVM.PredictValues(null, new SVMNode[5], out values));
         }
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_PredictValues_ModelIsZero_ThrowsException()
         {
             double[] values;
-            SVM.PredictValues(IntPtr.Zero, new SVMNode[5], out values);
+            Assert.Throws<ArgumentNullException>(() => SVM.PredictValues(IntPtr.Zero, new SVMNode[5], out values));
         }
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_PredictValues_InputVectorIsNull_ThrowsException()
         {
             double[] values;
-            SVM.PredictValues(new SVMModel(), null, out values);
+            Assert.Throws<ArgumentNullException>(() => SVM.PredictValues(new SVMModel(), null, out values));
         }
         //[TestMethod]
         public void SVM_PredictValues_Correct()
@@ -120,23 +113,20 @@ public void SVM_PredictValues_Correct()
 
         }
 
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_Predict_ModelIsNull_ThrowsException()
         {
-            SVM.Predict(null, new SVMNode[5]);
+            Assert.Throws<ArgumentNullException>(() => SVM.Predict(null, new SVMNode[5]));
         }
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_Predict_ModelIsZero_ThrowsException()
         {
-            SVM.Predict(IntPtr.Zero, new SVMNode[5]);
+            Assert.Throws<ArgumentNullException>(() => SVM.Predict(IntPtr.Zero, new SVMNode[5]));
         }
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_Predict_InputVectorIsNull_ThrowsException()
         {
-            SVM.Predict(new SVMModel(), null);
+            Assert.Throws<ArgumentNullException>(() => SVM.Predict(new SVMModel(), null));
         }
         //[TestMethod]
         public void SVM_Predict_Correct()
@@ -144,26 +134,23 @@ public void SVM_Predict_Correct()
 
         }
 
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_PredictProbability_ModelIsNull_ThrowsException()
         {
             double[] values;
-            SVM.PredictProbability(null, new SVMNode[5], out values);
+            Assert.Throws<ArgumentNullException>(() => SVM.PredictProbability(null, new SVMNode[5], out values));
         }
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_PredictProbability_ModelIsZero_ThrowsException()
         {
             double[] values;
-            SVM.PredictProbability(IntPtr.Zero, new SVMNode[5], out values);
+            Assert.Throws<ArgumentNullException>(() => SVM.PredictProbability(IntPtr.Zero, new SVMNode[5], out values));
         }
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_PredictProbability_InputVectorIsNull_ThrowsException()
         {
             double[] values;
-            SVM.PredictProbability(new SVMModel(), null, out values);
+            Assert.Throws<ArgumentNullException>(() => SVM.PredictProbability(new SVMModel(), null, out values));
         }
         //[TestMethod]
         public void SVM_PredictProbability_NotProbabilityModel_ReturnsNegativeNumber()
@@ -176,17 +163,15 @@ public void SVM_PredictProbability_Correct()
 
         }
 
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_CheckParameter_ProblemIsNull_ThrowsException()
         {
-            SVM.CheckParameter(null, new SVMParameter());
+            Assert.Throws<ArgumentNullException>(() => SVM.CheckParameter(null, new SVMParameter()));
         }
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_CheckParameter_ParameterIsNull_ThrowsException()
         {
-            SVM.CheckParameter(new SVMProblem(), null);
+            Assert.Throws<ArgumentNullException>(() => SVM.CheckParameter(new SVMProblem(), null));
         }
         //[TestMethod]
         public void SVM_CheckParameter_Correct()
@@ -194,11 +179,10 @@ public void SVM_CheckParameter_Correct()
 
         }
 
-        [TestMethod]
-        [ExpectedException(typeof(ArgumentNullException))]
+        [Test]
         public void SVM_CheckProbabilityModel_ModelIsNull_ThrowsException()
         {
-            SVM.CheckProbabilityModel(null);
+            Assert.Throws<ArgumentNullException>(() => SVM.CheckProbabilityModel(null));
         }
         //[TestMethod]
         public void SVM_CheckProbabilityModel_Correct()
diff --git a/LibSVMSharp.Tests/TestSVMModel.cs b/LibSVMSharp.Tests/TestSVMModel.cs
index 82f39ed..6197fa1 100644
--- a/LibSVMSharp.Tests/TestSVMModel.cs
+++ b/LibSVMSharp.Tests/TestSVMModel.cs
@@ -1,12 +1,12 @@
-using System;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
+
+using NUnit.Framework;
 
 namespace LibSVMSharp.Tests
 {
-    [TestClass]
+    [TestFixture]
     public class TestSVMModel
     {
-        [TestMethod]
+        [Test]
         public void TestMethod1()
         {
         }
diff --git a/LibSVMSharp.Tests/TestSVMNode.cs b/LibSVMSharp.Tests/TestSVMNode.cs
index d77441c..5ccb96d 100644
--- a/LibSVMSharp.Tests/TestSVMNode.cs
+++ b/LibSVMSharp.Tests/TestSVMNode.cs
@@ -1,12 +1,11 @@
-using System;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
+using NUnit.Framework;
 
 namespace LibSVMSharp.Tests
 {
-    [TestClass]
+    [TestFixture]
     public class TestSVMNode
     {
-        [TestMethod]
+        [Test]
         public void TestMethod1()
         {
         }
diff --git a/LibSVMSharp.Tests/TestSVMParameter.cs b/LibSVMSharp.Tests/TestSVMParameter.cs
index 3aee3f8..6f00ef5 100644
--- a/LibSVMSharp.Tests/TestSVMParameter.cs
+++ b/LibSVMSharp.Tests/TestSVMParameter.cs
@@ -1,12 +1,11 @@
-using System;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
+using NUnit.Framework;
 
 namespace LibSVMSharp.Tests
 {
-    [TestClass]
+	[TestFixture]
     public class TestSVMParameter
     {
-        [TestMethod]
+        [Test]
         public void TestMethod1()
         {
         }
diff --git a/LibSVMSharp.Tests/TestSVMProblem.cs b/LibSVMSharp.Tests/TestSVMProblem.cs
index bcb409f..9564a9a 100644
--- a/LibSVMSharp.Tests/TestSVMProblem.cs
+++ b/LibSVMSharp.Tests/TestSVMProblem.cs
@@ -1,12 +1,11 @@
-using System;
-using Microsoft.VisualStudio.TestTools.UnitTesting;
+using NUnit.Framework;
 
 namespace LibSVMSharp.Tests
 {
-    [TestClass]
+	[TestFixture]
     public class TestSVMProblem
     {
-        [TestMethod]
+        [Test]
         public void TestMethod1()
         {
         }
diff --git a/LibSVMsharp.Examples.Classification/LibSVMsharp.Examples.Classification.csproj b/LibSVMsharp.Examples.Classification/LibSVMsharp.Examples.Classification.csproj
index f833616..dc43738 100644
--- a/LibSVMsharp.Examples.Classification/LibSVMsharp.Examples.Classification.csproj
+++ b/LibSVMsharp.Examples.Classification/LibSVMsharp.Examples.Classification.csproj
@@ -1,62 +1,15 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ProjectGuid>{40F859AD-241A-4379-831C-8FB69BE6A8B1}</ProjectGuid>
+    <TargetFramework>net5.0</TargetFramework>
     <OutputType>Exe</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>LibSVMsharp.Examples.Classification</RootNamespace>
-    <AssemblyName>LibSVMsharp.Examples.Classification</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
-    <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <PlatformTarget>x64</PlatformTarget>
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <Prefer32Bit>false</Prefer32Bit>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <PlatformTarget>x64</PlatformTarget>
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="System" />
-    <Reference Include="System.Core" />
-    <Reference Include="System.Xml.Linq" />
-    <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="Microsoft.CSharp" />
-    <Reference Include="System.Data" />
-    <Reference Include="System.Xml" />
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="Program.cs" />
-    <Compile Include="Properties\AssemblyInfo.cs" />
-  </ItemGroup>
-  <ItemGroup>
-    <None Include="App.config" />
-  </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\LibSVMsharp\LibSVMsharp.csproj">
-      <Project>{ac04337c-e542-4be9-8dbd-5b44535299e2}</Project>
-      <Name>LibSVMsharp</Name>
-    </ProjectReference>
+    <ProjectReference Include="..\LibSVMsharp\LibSVMsharp.csproj" />
   </ItemGroup>
-  <ItemGroup />
   <ItemGroup>
     <Content Include="Dataset\wine.txt">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
@@ -65,18 +18,5 @@
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Content>
   </ItemGroup>
-  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <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>
-  </Target>
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
-       Other similar extension points exist, see Microsoft.Common.targets.
-  <Target Name="BeforeBuild">
-  </Target>
-  <Target Name="AfterBuild">
-  </Target>
-  -->
 </Project>
\ No newline at end of file
diff --git a/LibSVMsharp.Examples.RapidPrediction/LibSVMsharp.Examples.RapidPrediction.csproj b/LibSVMsharp.Examples.RapidPrediction/LibSVMsharp.Examples.RapidPrediction.csproj
index 54a795e..dc43738 100644
--- a/LibSVMsharp.Examples.RapidPrediction/LibSVMsharp.Examples.RapidPrediction.csproj
+++ b/LibSVMsharp.Examples.RapidPrediction/LibSVMsharp.Examples.RapidPrediction.csproj
@@ -1,63 +1,15 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ProjectGuid>{FFDF7EA5-53DA-4DF7-9DD8-E4E7DE2B5AB6}</ProjectGuid>
+    <TargetFramework>net5.0</TargetFramework>
     <OutputType>Exe</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>LibSVMsharp.Examples.RapidPrediction</RootNamespace>
-    <AssemblyName>LibSVMsharp.Examples.RapidPrediction</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
-    <FileAlignment>512</FileAlignment>
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <PlatformTarget>x64</PlatformTarget>
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <Prefer32Bit>false</Prefer32Bit>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+    <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <PlatformTarget>x64</PlatformTarget>
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="System" />
-    <Reference Include="System.Core" />
-    <Reference Include="System.Xml.Linq" />
-    <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="Microsoft.CSharp" />
-    <Reference Include="System.Data" />
-    <Reference Include="System.Xml" />
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="Program.cs" />
-    <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="RapidPredictor.cs" />
-  </ItemGroup>
-  <ItemGroup>
-    <None Include="App.config" />
-  </ItemGroup>
-  <ItemGroup>
-    <ProjectReference Include="..\LibSVMsharp\LibSVMsharp.csproj">
-      <Project>{ac04337c-e542-4be9-8dbd-5b44535299e2}</Project>
-      <Name>LibSVMsharp</Name>
-    </ProjectReference>
+    <ProjectReference Include="..\LibSVMsharp\LibSVMsharp.csproj" />
   </ItemGroup>
-  <ItemGroup />
   <ItemGroup>
     <Content Include="Dataset\wine.txt">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
@@ -66,18 +18,5 @@
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Content>
   </ItemGroup>
-  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
   <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>
-  </Target>
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
-       Other similar extension points exist, see Microsoft.Common.targets.
-  <Target Name="BeforeBuild">
-  </Target>
-  <Target Name="AfterBuild">
-  </Target>
-  -->
 </Project>
\ No newline at end of file
diff --git a/LibSVMsharp/LibSVMsharp.csproj b/LibSVMsharp/LibSVMsharp.csproj
index ad1498f..8bb7ce4 100644
--- a/LibSVMsharp/LibSVMsharp.csproj
+++ b/LibSVMsharp/LibSVMsharp.csproj
@@ -1,66 +1,12 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
+<Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
-    <ProjectGuid>{AC04337C-E542-4BE9-8DBD-5B44535299E2}</ProjectGuid>
+    <TargetFramework>netstandard2.0</TargetFramework>
     <OutputType>Library</OutputType>
-    <AppDesignerFolder>Properties</AppDesignerFolder>
-    <RootNamespace>LibSVMsharp</RootNamespace>
-    <AssemblyName>LibSVMsharp</AssemblyName>
-    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
-    <FileAlignment>512</FileAlignment>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
-    <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
-    <DefineConstants>DEBUG;TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <PlatformTarget>x64</PlatformTarget>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
-    <DefineConstants>TRACE</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
+    <GenerateAssemblyInfo>false</GenerateAssemblyInfo>
     <PlatformTarget>x64</PlatformTarget>
   </PropertyGroup>
   <ItemGroup>
-    <Reference Include="System" />
-    <Reference Include="System.Core" />
-    <Reference Include="System.Xml.Linq" />
-    <Reference Include="System.Data.DataSetExtensions" />
-    <Reference Include="Microsoft.CSharp" />
-    <Reference Include="System.Data" />
-    <Reference Include="System.Xml" />
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="Core\libsvm.cs" />
-    <Compile Include="Core\svm_model.cs" />
-    <Compile Include="Core\svm_node.cs" />
-    <Compile Include="Core\svm_parameter.cs" />
-    <Compile Include="Core\svm_problem.cs" />
-    <Compile Include="Extensions\SVMModelExtensions.cs" />
-    <Compile Include="Extensions\SVMNodeExtensions.cs" />
-    <Compile Include="Extensions\SVMProblemExtensions.cs" />
-    <Compile Include="Helpers\SVMHelper.cs" />
-    <Compile Include="Helpers\SVMNodeHelper.cs" />
-    <Compile Include="Helpers\SVMProblemHelper.cs" />
-    <Compile Include="Properties\AssemblyInfo.cs" />
-    <Compile Include="SVM.cs" />
-    <Compile Include="SVMModel.cs" />
-    <Compile Include="SVMNode.cs" />
-    <Compile Include="SVMParameter.cs" />
-    <Compile Include="SVMProblem.cs" />
-  </ItemGroup>
-  <ItemGroup>
-    <None Include="LIBSVM_COPYRIGHT">
+    <None Update="LIBSVM_COPYRIGHT">
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </None>
   </ItemGroup>
@@ -69,16 +15,9 @@
       <CopyToOutputDirectory>Always</CopyToOutputDirectory>
     </Content>
   </ItemGroup>
-  <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
-  <PropertyGroup>
-    <PostBuildEvent>
-    </PostBuildEvent>
-  </PropertyGroup>
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
-       Other similar extension points exist, see Microsoft.Common.targets.
-  <Target Name="BeforeBuild">
-  </Target>
-  <Target Name="AfterBuild">
-  </Target>
-  -->
+  <ItemGroup>
+    <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
+    <PackageReference Include="System.Data.DataSetExtensions" Version="4.5.0" />
+  </ItemGroup>
+  <PropertyGroup />
 </Project>
\ No newline at end of file