From d818696236cdd2f7add051dc8c182c43b1de0a6d Mon Sep 17 00:00:00 2001
From: Chika <djchikalkin@gmail.com>
Date: Wed, 30 Sep 2020 16:06:14 +0300
Subject: [PATCH] fix configuration is undefined

---
 src/client/stores/CalculationStore/Effects/reaction.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/client/stores/CalculationStore/Effects/reaction.ts b/src/client/stores/CalculationStore/Effects/reaction.ts
index f922847..47afeb3 100644
--- a/src/client/stores/CalculationStore/Effects/reaction.ts
+++ b/src/client/stores/CalculationStore/Effects/reaction.ts
@@ -1479,7 +1479,7 @@ const reactionEffects: IReactionEffect[] = [
       return [configuration, selectConfiguration];
     },
     effect: ([configurationId, selectConfigurationOptions]) => {
-      if (selectConfigurationOptions.length) {
+      if (selectConfigurationOptions && selectConfigurationOptions.length) {
         if (!configurationId) {
           calculationStore.setValidation('selectConfiguration', false);
           return;