处理新账号批量添加学区管理员失败的问题

TEAMModelBI/Controllers/BINormal/AreaRelevantController.cs

@@ -253,7 +253,7 @@ namespace TEAMModelBI.Controllers.BINormal
             List<SimpleInfo> errorSc = new();
             StringBuilder strMsg = new($"{_tmdName}【{_tmdId}】账户将{tmdName}【{tmdId}】");
 
-            Teacher teacher = null;
+            Teacher teacher = new();
             var response = await cosmosClient.GetContainer("TEAMModelOS", "Teacher").ReadItemStreamAsync($"{tmdId}", new PartitionKey($"Base"));
             if (response.Status == 200)
             {