From 4381287a5dd1cb83757158f79a2d34b171adcdac Mon Sep 17 00:00:00 2001
From: cloudwebrtc <duanweiwei1982@gmail.com>
Date: Thu, 8 Dec 2022 16:17:38 +0800
Subject: [PATCH] fix: Avoid concurrent operations for _participants during
 Room._cleanUp().

---
 lib/src/core/room.dart | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/src/core/room.dart b/lib/src/core/room.dart
index ddcf61a..614eb67 100644
--- a/lib/src/core/room.dart
+++ b/lib/src/core/room.dart
@@ -594,7 +594,8 @@ extension RoomPrivateMethods on Room {
     logger.fine('[${objectId}] cleanUp()');
 
     // clean up RemoteParticipants
-    for (final participant in _participants.values) {
+    var participants = _participants.values.toList();
+    for (final participant in participants) {
       // RemoteParticipant is responsible for disposing resources
       await participant.dispose();
     }