No Command to run Application

I am trying to create a Telegram bot but i am getting ERROR: no command to run your application: add a run command in your Service configuration or create a Procfile in your git repository. Check https://koyeb.com/e/run-command for more details.

Application exited with code 1. This usually indicates an application failure. Check that the command used to launch your application is correct

I do have correct procfile