SteamKit2.ICallbackMessage doesn't contain a definition for Handle

[KowalskiThomas]

I tried to test the bot, though I can't compile it.

I installed the last version of the dependencies using NuGet (SteamKit version is 2.1.8.0) and I get ten times the same error :

SteamKit2.ICallbackMessage doesn't have any definition for 'Handle' and no extension method using a first argument of type ICallbackMessage was found (a using directive may be missing ?)

I translated the error from French so it won't be exact...

What can I do ?

[Mithgroth]

You are using SteamKit2 2.0+
On 1.7, ICallbackMessage.Handle is replaced by CallbackManager: SteamRE/SteamKit#221

This library uses 1.6.2.
Use SteamKit2 1.6.2 or change the code to adapt CallbackManager.