2 months ago
I am trying to deploy my backend service build with Python and FastAPI. The build keeps failing.
I receive no error on the build log but it says "Build Error". I am not clearly understanding what the problem might be. I have tried changing the Dockerfile but everything fails at the end.
3 Replies
Status changed to Awaiting Railway Response Railway • 2 months ago
2 months ago
Hello, can you share your dockerfile and let us know if you have a railway.json, procfile, or any start command set in your railway service settings? because a silent "build error" with no logs usually means the issue is in one of those places
2 months ago
Adding to domehane's point: on Railway, config in railway.json/railway.toml can override dashboard build/deploy settings for that deployment, so a ‘Build Error’ with no obvious Docker output is not always the Dockerfile alone. It would help to share the Dockerfile, repo structure, and whether there’s any custom Build Command or Start Command set in the service settings. Railway also shows build logs and deploy logs separately, so please confirm which phase is actually failing by checking the deployment details, or with railway logs --build --latest and railway logs --deployment --latest. If this is FastAPI, I’d specifically verify whether the image is using the expected entrypoint/CMD and whether any Railway Start Command is overriding it.