added another platform to overcome breaking change in ms.extensions.di 2.0.0

Build/MQTTnet.nuspec

@@ -41,6 +41,17 @@
         <dependency id="System.Net.WebSockets.Client" version="4.3.1" />
         <dependency id="System.Threading.Thread" version="4.3.0" />
       </group>
+
+      <group targetFramework="netstandard2.0">
+        <dependency id="NETStandard.Library" version="2.0.0" />
+        <dependency id="Microsoft.Extensions.DependencyInjection" version="2.0.0" />
+        <dependency id="Microsoft.Extensions.Logging" version="2.0.0" />
+        <dependency id="Microsoft.Extensions.Options" version="2.0.0" />
+        <dependency id="System.Net.Security" version="4.3.2" />
+        <dependency id="System.Net.WebSockets" version="4.3.0" />
+        <dependency id="System.Net.WebSockets.Client" version="4.3.1" />
+        <dependency id="System.Threading.Thread" version="4.3.0" />
+      </group>
       
       <group targetFramework="uap10.0">
         <dependency id="Microsoft.NETCore.UniversalWindowsPlatform" version="5.4.0" />
@@ -62,6 +73,10 @@
     <!-- .NET Standard 1.3 -->
     <file src="..\Frameworks\MQTTnet.Netstandard\bin\Release\netstandard1.3\MQTTnet.Core.*" target="lib\netstandard1.3\"/>
     <file src="..\Frameworks\MQTTnet.Netstandard\bin\Release\netstandard1.3\MQTTnet.*" target="lib\netstandard1.3\"/>
+    
+    <!-- .NET Standard 2.0 -->
+    <file src="..\Frameworks\MQTTnet.Netstandard\bin\Release\netstandard2.0\MQTTnet.Core.*" target="lib\netstandard2.0\"/>
+    <file src="..\Frameworks\MQTTnet.Netstandard\bin\Release\netstandard2.0\MQTTnet.*" target="lib\netstandard2.0\"/>
 
     <!-- Universal Windows -->
     <file src="..\Frameworks\MQTTnet.Netstandard\bin\Release\uap10.0\MQTTnet.Core.*" target="lib\uap10.0\"/>

Build/build.ps1

@@ -10,6 +10,7 @@ if ($path) {
 
     &$msbuild ..\Frameworks\MQTTnet.Netstandard\MQTTnet.Netstandard.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="net452" /p:FileVersion=$version /p:AssemblyVersion=$version /verbosity:m
     &$msbuild ..\Frameworks\MQTTnet.Netstandard\MQTTnet.Netstandard.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="netstandard1.3" /p:FileVersion=$version /p:AssemblyVersion=$version /verbosity:m
+    &$msbuild ..\Frameworks\MQTTnet.Netstandard\MQTTnet.Netstandard.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="netstandard2.0" /p:FileVersion=$version /p:AssemblyVersion=$version /verbosity:m
     &$msbuild ..\Frameworks\MQTTnet.Netstandard\MQTTnet.Netstandard.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="uap10.0" /p:FileVersion=$version /p:AssemblyVersion=$version /verbosity:m
     
 	&$msbuild ..\Frameworks\MQTTnet.AspNetCore\MQTTnet.AspNetCore.csproj /t:Build /p:Configuration="Release" /p:TargetFramework="netstandard2.0" /p:FileVersion=$version /p:AssemblyVersion=$version /verbosity:m

Frameworks/MQTTnet.NetStandard/Implementations/MqttServerAdapter.cs

@@ -1,4 +1,4 @@
-#if NET452 || NETSTANDARD1_3
+#if NET452 || NETSTANDARD1_3 || NETSTANDARD2_0
 using System;
 using System.Net;
 using System.Net.Security;

Frameworks/MQTTnet.NetStandard/Implementations/MqttTcpChannel.cs

@@ -1,4 +1,4 @@
-#if NET452 || NETSTANDARD1_3
+#if NET452 || NETSTANDARD1_3 || NETSTANDARD2_0
 using System;
 using System.Net.Security;
 using System.Net.Sockets;

Frameworks/MQTTnet.NetStandard/MQTTnet.Netstandard.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.3;net452;uap10.0</TargetFrameworks>
+    <TargetFrameworks>netstandard1.3;netstandard2.0;net452;uap10.0</TargetFrameworks>
     <AssemblyName>MQTTnet</AssemblyName>
     <RootNamespace>MQTTnet</RootNamespace>
     <AssemblyVersion>2.5.0.0</AssemblyVersion>
@@ -32,23 +32,40 @@
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'" />
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="1.1.1" />
-    <PackageReference Include="Microsoft.Extensions.Logging" Version="1.1.2" />
   </ItemGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\..\MQTTnet.Core\MQTTnet.Core.csproj" />
   </ItemGroup>
 
+  <ItemGroup Condition="'$(TargetFramework)'=='netstandard2.0'">
+    <PackageReference Include="System.Net.Security" Version="4.3.2" />
+    <PackageReference Include="System.Net.WebSockets" Version="4.3.0" />
+    <PackageReference Include="System.Net.WebSockets.Client" Version="4.3.1" />
+    <PackageReference Include="System.Threading.Thread" Version="4.3.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="2.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="2.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Options" Version="2.0.0" />
+  </ItemGroup>
+
   <ItemGroup Condition="'$(TargetFramework)'=='netstandard1.3'">
     <PackageReference Include="System.Net.Security" Version="4.3.2" />
     <PackageReference Include="System.Net.WebSockets" Version="4.3.0" />
     <PackageReference Include="System.Net.WebSockets.Client" Version="4.3.1" />
     <PackageReference Include="System.Threading.Thread" Version="4.3.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="1.1.1" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="1.1.2" />
   </ItemGroup>
 
   <ItemGroup Condition="'$(TargetFramework)'=='uap10.0'">
     <PackageReference Include="Microsoft.NETCore.UniversalWindowsPlatform" Version="5.4.0" />
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="1.1.1" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="1.1.2" />
+  </ItemGroup>
+
+  <ItemGroup Condition="'$(TargetFramework)'=='net452'">
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="1.1.1" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="1.1.2" />
   </ItemGroup>
 
 </Project>

Tests/MQTTnet.Core.Tests/MQTTnet.Core.Tests.csproj

@@ -7,7 +7,6 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Logging" Version="1.1.2" />
     <PackageReference Include="MSTest.TestAdapter" Version="1.2.0" />
     <PackageReference Include="MSTest.TestFramework" Version="1.2.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.3.0" />
@@ -15,7 +14,6 @@
 
   <ItemGroup>
     <ProjectReference Include="..\..\Frameworks\MQTTnet.Netstandard\MQTTnet.NetStandard.csproj" />
-    <ProjectReference Include="..\..\MQTTnet.Core\MQTTnet.Core.csproj" />
   </ItemGroup>
 
 </Project>

Tests/MQTTnet.TestApp.NetCore/MQTTnet.TestApp.NetCore.csproj

@@ -7,13 +7,11 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Extensions.Logging" Version="1.1.2" />
     <PackageReference Include="Newtonsoft.Json" Version="10.0.3" />
   </ItemGroup>
 
   <ItemGroup>
     <ProjectReference Include="..\..\Frameworks\MQTTnet.Netstandard\MQTTnet.NetStandard.csproj" />
-    <ProjectReference Include="..\..\MQTTnet.Core\MQTTnet.Core.csproj" />
   </ItemGroup>
 
   <ItemGroup>