I am getting " Error: data is too long" when deploying my Turborepo + Next.js + FastAPI project.
Hi, and welcome @sshkeda! It’s great to have you in the community. 
Can you share more details of your project? Is it a function that is causing this error? A minimal reproducible example would be helpful.
It does sound that you have hit a limit though. In case it is related to a function, here is some documentation on runtime bundle size limits: Choosing a Runtime.