dependency on Microsoft.Bcl.HashCode and compatibility with unity

[Man4oo]

i built an opc ua client in unity. the API compatibility of the project is netstandard 2.1. the client was working fine until i installed a new package in unity that resulted in that error "error CS0433: The type 'HashCode' exists in both 'Microsoft.Bcl.HashCode, Version=1.0.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' and 'netstandard, Version=2.1.0.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51' " the problem is if i deleted the "Microsoft.Bcl.HashCode.dll" something weird happens, i start getting a "BadNotConnected" error if i try to connect with a server that's on another computer ( both computers connected to the same local network) but if i try to connect with the server simulator installed on my computer it works seamlessly. i am actually not using the dll in my client script so i assume it's a dependency for some of the packages which i fail to understand because this dll shouldn't be required for the packages' version compatible with netstandard2.1. if anything, the "OPCFoundation.NetStandard.Opc.Ua.Bindings.Https" package which is a required dependency for the "OPCFoundation.NetStandard.Opc.Ua" doesn't support netstandard, could that be the source of the problem? or what is the problem here .

[romanett]

Weh have this dependency in the core package:

<ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0' OR '$(TargetFramework)' == 'net462' OR '$(TargetFramework)' == 'net472' OR '$(TargetFramework)' == 'net48'">
  PackageReference Include="Microsoft.Bcl.HashCode" Version="1.1.1" />
</ItemGroup>

[mregen]

Hi @Man4oo, I suspect you only build a client or a server?
Then please reference only the client or server package:
OPCFoundation.NetStandard.Opc.Ua.Client
OPCFoundation.NetStandard.Opc.Ua.Server
and see if there is still that issue. The https package could be the problem here because it uses a different packaging mechanism.