<PackageReference Include="NETStandard.Library" Version="2.0.3" />

System.Threading.BarrierPostPhaseException

namespace System.Threading { public class BarrierPostPhaseException : Exception { public BarrierPostPhaseException(); public BarrierPostPhaseException(Exception innerException); protected BarrierPostPhaseException(SerializationInfo info, StreamingContext context); public BarrierPostPhaseException(string message); public BarrierPostPhaseException(string message, Exception innerException); } }