Pitfalls

This page outlines common issues that may arise when using the ACI framework.

RuntimeError: invalid value for environment variable MUJOCO_GL: egl

This error may occur when trying to run an environment headless using the egl backend. To fix, you can either explicitly set MUJOCO_GL to a supported value on your system, as found here, or you can install the EGL backend for OpenGL. Installation depends on your system.