Factorio Forums

Posted: **Tue Aug 11, 2026 1:07 am**

I attempted to start the docker image on a clean filesystem by copy-pasting the example command from https://hub.docker.com/r/factoriotools/factorio.

Server fails to start with a smoking gun:

Code: Select all

sudo rm -rf /opt/factorio && \
sudo mkdir -p /opt/factorio && \
sudo chown 845:845 /opt/factorio && \
sudo docker run \
  -p 34197:34197/udp \
  -p 27015:27015/tcp \
  -v /opt/factorio:/factorio \
  --name factorio \
  --restart=unless-stopped \
  factoriotools/factorio
...
0.000 Error Util.cpp:81: Key "build_base_unit_dispatch_cooldown" not found in property tree at ROOT.enemy_expansion

I expected the server to copy valid default config into place and start the server. Searching "build_base_unit_dispatch_cooldown" leads to https://lua-api.factorio.com/latest/typ ... h_cooldown, a new setting. I'm guessing that the default config is invalid. Since there's no default value for this key, I'm unsure what the default value should be to work around the issue.

Happens every time, including if I run a second time without wiping the filesystem. Reproducible on both arm64 and amd64.

I stepped back through versions until I found one that started:
factoriotools/factorio:2.1.14

factoriotools/factorio:2.1.13

factoriotools/factorio:2.1.12

Attached shell output showing error, logs from disk (that omit the error), and config files that were generated by 2.1.14.

Factorio Forums

[2.1.14] docker image fails to clean start: build_base_unit_dispatch_cooldown

[2.1.14] docker image fails to clean start: build_base_unit_dispatch_cooldown