VSSample.csproj

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFramework>netstandard2.0</TargetFramework>
    <AzureFunctionsVersion>v2</AzureFunctionsVersion>
  </PropertyGroup>

  <!-- Common packages for all targets -->
  <ItemGroup>
    <PackageReference Include="Microsoft.Azure.WebJobs.Extensions.DurableTask" Version="1.6.2" />
    <PackageReference Include="Microsoft.NET.Sdk.Functions" Version="1.0.21" />
  </ItemGroup>

  <!-- .NET Standard 2.0-specific packages -->
  <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
    <PackageReference Include="Microsoft.Azure.WebJobs.Extensions.Twilio" Version="3.0.0" />
    <PackageReference Include="Microsoft.Azure.WebJobs.Extensions.Storage" Version="3.0.0" />
  </ItemGroup>

  <!-- Full framework packages -->
  <ItemGroup Condition="'$(TargetFramework)' != 'netstandard2.0'">
    <PackageReference Include="Microsoft.Azure.WebJobs.Extensions.Twilio" Version="1.2.0" />
  </ItemGroup>
  
  <ItemGroup>
    <None Update="host.json">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
    </None>
    <None Update="local.settings.json">
      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
    </None>
  </ItemGroup>
</Project>