issue18.csproj

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    <!-- see https://github.com/dotnet/docs/issues/12237 -->
    <RollForward>LatestMajor</RollForward>
    <RestoreSources>../../packages;$(RestoreSources);https://api.nuget.org/v3/index.json</RestoreSources>
    <AssemblyName>Google.OrTools.issue18</AssemblyName>
    <IsPackable>false</IsPackable>
  </PropertyGroup>

  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
    <DebugType>full</DebugType>
    <Optimize>true</Optimize>
    <GenerateTailCalls>true</GenerateTailCalls>
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  <ItemGroup>
    <Compile Include="issue18.cs" />
    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="15.7.0" />
    <PackageReference Include="xunit" Version="2.3.1" />
    <PackageReference Include="xunit.runner.visualstudio" Version="2.3.1" />
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</Project>