diff --git a/lib/utils/system_util.dart b/lib/utils/system_util.dart
index aabfef2..3c7a380 100644
--- a/lib/utils/system_util.dart
+++ b/lib/utils/system_util.dart
@@ -67,3 +67,9 @@ Future<String> getIPAddress(String domain) async {
   c.complete(ipAddress);
   return c.future;
 }
+
+Future get simpleFuture {
+  var c = Completer();
+  c.complete();
+  return c.future;
+}