AspNetCore.SignalR : Cannot start a connection that is not in the Initial state
问题 I have troubles to get my ASP.NET Core SignalR app working. I have this server-side code : public class PopcornHub : Hub { private int Users; public async Task BroadcastNumberOfUsers(int nbUser) { await Clients.All.InvokeAsync("OnUserConnected", nbUser); } public override async Task OnConnectedAsync() { Users++; await BroadcastNumberOfUsers(Users); await base.OnConnectedAsync(); } public override async Task OnDisconnectedAsync(Exception exception) { Users--; await BroadcastNumberOfUsers(Users