update

TEAMModelBI/Controllers/BISchool/SchoolController.cs

@@ -700,8 +700,8 @@ namespace TEAMModelBI.Controllers.BISchool
                 }
                 else { areaId = $"{scAreaId}"; }
 
-                Teacher teacher = null;
-                SchoolTeacher schoolTeacher = null;
+                Teacher teacher = new();
+                SchoolTeacher schoolTeacher = new();
                 var resTeacher = await cosmosClient.GetContainer("TEAMModelOS", "Teacher").ReadItemStreamAsync($"{tmdId}", new PartitionKey($"Base"));
                 if (resTeacher.Status == 200)
                 {