raise HaltServer(reason, self.WORKER_BOOT_ERROR) gunicorn.errors.HaltServer: <HaltServer ‘Worker failed to boot.’ 3deep-learning, gunicorn, python / By Nitin Saini I am trying to deploy my project dog-cat classifier on Heroku. I followed the exact producer of deployment and it deployed successfully. But when run my app it gives me an Application error. After that, I checked build logs. It is showing me this error. please help me. Read more here: https://stackoverflow.com/questions/66455242/raise-haltserverreason-self-worker-boot-error-gunicorn-errors-haltserver-ha Content AttributionThis content was originally published by Nitin Saini at Recent Questions - Stack Overflow, and is syndicated here via their RSS feed. You can read the original post over there.