Could you share a bit more detail about your setup (board, RT-Thread version, and any error messages)? It’ll be much easier to help pinpoint the issue.
In many cases, problems like this are related to configuration or missing components (e.g., headers or packages), so double-check your project settings and build environment as well.
https://deepwiki.com/RT-Thread/rt-thread/1.2-getting-starteddrift boss
Ask RT-Thread SDK Manager