error while build

[pavoltravnik]

docker build -t robot-docker .

The command '/bin/sh -c apk-install bash py-pip firefox xvfb dbus chromium-chromedriver && pip install --upgrade pip && pip install robotframework robotframework-selenium2library selenium robotframework-xvfb && python --version' returned a non-zero code: 6

Probably need to update.

[cwienands]

Were there any error messages above this exception? I just built the Docker image myself. On the first try some download failed. When I retried, the image successfully built.