From 71acb5140b21c0380c943457f73735f8e58f3882 Mon Sep 17 00:00:00 2001
From: "Chi Wang (MSR)" <chiw@microsoft.com>
Date: Fri, 5 Feb 2021 23:42:28 -0800
Subject: [PATCH] None check

---
 flaml/searcher/blendsearch.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/flaml/searcher/blendsearch.py b/flaml/searcher/blendsearch.py
index adca20c562..202e475a18 100644
--- a/flaml/searcher/blendsearch.py
+++ b/flaml/searcher/blendsearch.py
@@ -116,7 +116,8 @@ def set_search_properties(self,
         else:    
             self._metric, self._mode = metric, mode
             self._ls.set_search_properties(metric, mode, config)
-            self._gs.set_search_properties(metric, mode, config)
+            if self._gs is not None:
+                self._gs.set_search_properties(metric, mode, config)
             self._init_search()
         return True