how to fix operator '==' is ambiguous on operands of type ulong and long

Question

I\'m currently building a new command in my Discord Server and i\'m struggling to convert the UserId back to the Users Nickname in my server.

i am getting error message

Answer 1

Try casting memberId to a ulong (or UInt64) so the type matches x.Id:

var memberId = (ulong)reader.GetInt64(0);
string name = Context.Guild.Users
    .Where(x => x.Id == memberId)
    ...
    ...

Also, you have a few other things to fix as the other answer and comments suggest. ;)