Could you share a print?

from fastapi import FastAPI, HTTPException, Depends

ModuleNotFoundError: No module named 'fastapi'

Traceback (most recent call last):

File "/app/main.py", line 1, in <module>

You need to install the dependencies before running the app https://docs.railway.com/guides/fastapi#use-a-dockerfile

I understood how to setup the requirements.txt file and then it worked, thank you