Docker Compose service dependency is missing
Error recorded 1 times in PanelAlpha Engine deploys on Dockerfile. The deploy log below is the recorded failure output.
TypeErrorAn error that occurred in the deployed application. It is not necessarily a PanelAlpha Engine error, but we keep working on improvements so you run into fewer of them.
Seen1 times
WhereDockerfile
StatusObservedOur team will look into this soon, verify the cause and try to fix it in an upcoming release.
Why it happens
The deployment keeps selected runtime services from the repository’s Compose file, including Redis and Traefik. The app still declares a dependency on Traefik, but that service is not present in the resulting Compose project. Missing ACME_EMAIL and DB_PWD values are also reported as warnings, but the undefined Traefik dependency is what stops startup.
What the log looks like
Deploy log
Starting application (docker compose up -d)time="2026-09-10T23:56:29Z" level=warning msg="The \"ACME_EMAIL\" variable is not set. Defaulting to a blank string."time="2026-09-10T23:56:29Z" level=warning msg="The \"DB_PWD\" variable is not set. Defaulting to a blank string."service "app" depends on undefined service "traefik": invalid compose project