I try to make a discord bot in c# with plugin d# and I have this error that shouldn't exist I watch a tutorial and I copy the code so it should work

```
 public class Bot
{
    public DiscordClient Client { get; private set; }
    public CommandsNextConfiguration Commands { get; private set; }
    public async Task RunAsync()
    {
        var config = new DiscordConfiguration
        {

        };

        Client = new DiscordClient(config);

        Client.Ready += OnClientReady;
        var commandsConfig = new CommandsNextConfiguration
        {

        };

        Commands = Client.UseCommandsNext(commandsConfig);

    }

    private Task OnClientReady(object sender, ReadyEventArgs e)
    {
        return null;
    }

```