有您在创建应用程序时选择了"免费试用版"？您是否能够在Azure门户物联网中间应用程序列表下看到该应用程序？此外，请确认您的
是否遵循
此文档。

Have you selected ‘free trial’ while creating an application? Are you able to see the application under Azure Portal IoT Central Application list? Also, do confirm if you are following the steps from this documentation.