IprivacyProvider doesn't support for UWP background application (netstandard 2.0 )

[shrutiIBMS]

I'm facing this issue while implementing BouncyCastleDESPrivacyProvider from the samples. I'm using Lextm.SharpSnmpLib v 12.4.0. The following errors and many other 39 errors : Type 'Samples.BouncyCastle.BouncyCastleDESPrivacyProvider' implements interface 'Lextm.SharpSnmpLib.Security.IPrivacyProvider', which is not a Windows Runtime interface. All interfaces that are implemented by exported types must be Windows Runtime interfaces.