From a8ff8f1b67107fb0e6f1d8141839da65f5ba597f Mon Sep 17 00:00:00 2001
From: liangshiwei <deawback@hotmail.com>
Date: Mon, 6 Nov 2023 13:26:05 +0800
Subject: [PATCH] Check usingNamespaceList is not null before adding namespace

---
 .../ServiceProxying/CSharp/CSharpServiceProxyGenerator.cs  | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ServiceProxying/CSharp/CSharpServiceProxyGenerator.cs b/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ServiceProxying/CSharp/CSharpServiceProxyGenerator.cs
index 5c17296272..88ce572d33 100644
--- a/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ServiceProxying/CSharp/CSharpServiceProxyGenerator.cs
+++ b/framework/src/Volo.Abp.Cli.Core/Volo/Abp/Cli/ServiceProxying/CSharp/CSharpServiceProxyGenerator.cs
@@ -538,8 +538,11 @@ public class CSharpServiceProxyGenerator : ServiceProxyGeneratorBase<CSharpServi
             usingNamespaceList?.AddIfNotContains($"using {GetTypeNamespace(typeName)};");
             return NormalizeTypeName(typeName.Split(".").Last());
         }
-        
-        AddGenericTypeUsingNamespace(typeName, usingNamespaceList);
+
+        if(usingNamespaceList != null)
+        {
+            AddGenericTypeUsingNamespace(typeName, usingNamespaceList);
+        }
         
         var type = new StringBuilder();
         var s1 = typeName.Split("<");