From 819ac321ba86c78f420ae324488312eb01779aa7 Mon Sep 17 00:00:00 2001
From: MysticBoy <mysticboy@live.com>
Date: Wed, 23 Mar 2022 01:17:29 +0800
Subject: [PATCH] =?UTF-8?q?=E6=8A=A5=E9=94=99=E9=97=AE=E9=A2=98?=
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---
 IoTSharp/FlowRuleEngine/FlowRuleProcessor.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/IoTSharp/FlowRuleEngine/FlowRuleProcessor.cs b/IoTSharp/FlowRuleEngine/FlowRuleProcessor.cs
index 59119174..8b78641d 100644
--- a/IoTSharp/FlowRuleEngine/FlowRuleProcessor.cs
+++ b/IoTSharp/FlowRuleEngine/FlowRuleProcessor.cs
@@ -524,7 +524,7 @@ namespace IoTSharp.FlowRuleEngine
         public async Task<List<Flow>> ProcessCondition(Guid flowId, dynamic data)
         {
             var flow = _allFlows.FirstOrDefault(c => c.FlowId == flowId);
-            var flows = _allFlows.Where(c => c.SourceId == flow.bpmnid).ToList();
+            var flows = _allFlows.Where(c => c.SourceId == flow?.bpmnid).ToList();
             var emptyflow = flows.Where(c => c.Conditionexpression == string.Empty).ToList() ?? new List<Flow>();
             var tasks = new BaseRuleTask()
             {
-- 
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