From 578e5cb92e66a62bd81b08d2cb0c944cedca5030 Mon Sep 17 00:00:00 2001
From: Dean Herbert <pe@ppy.sh>
Date: Wed, 9 Dec 2020 15:59:13 +0900
Subject: [PATCH] Also make InvalidStateException serializable

---
 .../RealtimeMultiplayer/InvalidStateException.cs       | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/osu.Game/Online/RealtimeMultiplayer/InvalidStateException.cs b/osu.Game/Online/RealtimeMultiplayer/InvalidStateException.cs
index 8393e7e925..7791bfc69f 100644
--- a/osu.Game/Online/RealtimeMultiplayer/InvalidStateException.cs
+++ b/osu.Game/Online/RealtimeMultiplayer/InvalidStateException.cs
@@ -2,14 +2,22 @@
 // See the LICENCE file in the repository root for full licence text.
 
 using System;
+using System.Runtime.Serialization;
+using Microsoft.AspNetCore.SignalR;
 
 namespace osu.Game.Online.RealtimeMultiplayer
 {
-    public class InvalidStateException : Exception
+    [Serializable]
+    public class InvalidStateException : HubException
     {
         public InvalidStateException(string message)
             : base(message)
         {
         }
+
+        protected InvalidStateException(SerializationInfo info, StreamingContext context)
+            : base(info, context)
+        {
+        }
     }
 }