diff --git a/net/src/main/java/com/zfoo/net/router/route/PacketBus.java b/net/src/main/java/com/zfoo/net/router/route/PacketBus.java
index 4ef4e907..6f6222fd 100644
--- a/net/src/main/java/com/zfoo/net/router/route/PacketBus.java
+++ b/net/src/main/java/com/zfoo/net/router/route/PacketBus.java
@@ -53,7 +53,8 @@ public abstract class PacketBus {
     public static void route(Session session, IPacket packet, IAttachment attachment) {
         var packetReceiver = (IPacketReceiver) ProtocolManager.getProtocol(packet.protocolId()).receiver();
         if (packetReceiver == null) {
-            throw new RuntimeException(StringUtils.format("no any packetReceiverDefinition found for this [packet:{}]", packet.getClass().getName()));
+            var name = packet.getClass().getSimpleName();
+            throw new RuntimeException(StringUtils.format("no any packetReceiver:[at{}] found for this packet:[{}] or no GatewayAttachment sent back if this server is gateway", name, name));
         }
         packetReceiver.invoke(session, packet, attachment);
     }
diff --git a/net/src/main/java/com/zfoo/net/session/Session.java b/net/src/main/java/com/zfoo/net/session/Session.java
index 7a613262..3b8e54dd 100644
--- a/net/src/main/java/com/zfoo/net/session/Session.java
+++ b/net/src/main/java/com/zfoo/net/session/Session.java
@@ -32,16 +32,17 @@ public class Session implements Closeable {
      */
     private long sid;
 
-    /**
-     * EN:The default user ID is an ID greater than 0, or equal 0 if there is no login
-     * CN:默认用户的id都是大于0的id，如果没有登录则等于0
-     */
-    private long uid = 0;
-
     private Channel channel;
 
     /**
-     * Session附带的属性参数，消费者的属性
+     * EN:The default user ID is an ID greater than 0, or equal 0 if there is no login, user extra parameters
+     * CN:默认用户的id都是大于0的id，如果没有登录则等于0，用户额外参数
+     */
+    private long uid = 0;
+
+    /**
+     * EN:Session extra parameters
+     * CN:Session附带的属性参数，消费者的属性
      */
     private RegisterVO consumerAttribute = null;