Why does my Gemini studio remind me:You've reached your rate limit. Please try again later.?

why does my Gemini studio remind me:You’ve reached your rate limit. Please try again later.?

I have never encountered it before

Hi @Meng_XiaoFei
If you are using Gemini Studio’s free tier, your limits are generally the most restrictive.
Please let me know which model were you using when you got this error.
Thank you