update .

TEAMModelOS.FunctionV4/ServiceBus/ActiveTaskTopic.cs

@@ -744,6 +744,10 @@ namespace TEAMModelOS.FunctionV4.ServiceBus
                     await _dingDing.SendBotMsg($"校本研修生成PDF时，区级id为空\n{msg}", GroupNames.成都开发測試群組);
                     return;
                 }
+                if (!tIds.Any())
+                {
+                    return;
+                }
                 var blobclient = _azureStorage.GetBlobContainerClient($"teammodelos");
                 //查询当前学校所有的校本研修活动
                 List<Study> studies = new();