xvfp-run missing UnityPlayer.so error

SOLVED: Running this tutorial: https://github.com/Unity-Technologies/Unity-Simulation-Docs/blob/master/doc/testing.md , xvfb-run inside my Docker container is failing with this error message:



This is fixed by another update to Dockerfile, which should look like this:

# What is the base image to pull

FROM python:3.7.2-stretch



# Update package lists

RUN apt-get update



# Install xvfb to execute the Unity build on the container

RUN apt-get install -y xvfb



# Copy the executable and _Data directory to /tmp

COPY RollaballLinuxBuild/rollaball_linux_build/rollaball.x86_64 /tmp/linux_build.x86_64

COPY RollaballLinuxBuild/rollaball_linux_build/rollaball_Data /tmp/linux_build_Data



# Copy the UnityPlayer shared object file to /tmp

COPY RollaballLinuxBuild/rollaball_linux_build/UnityPlayer.so /tmp/UnityPlayer.so

(Note that the code above also incorporates the fix I reported at https://forum.unity.com/threads/solved-copy-failed-on-docker-build.977481/ )

 

Thank you. We have the Dockerfile documented at https://github.com/Unity-Technologies/Unity-Simulation-Docs/blob/master/doc/testing.md