I suspect that you have enabled the Chrono::OpenGL module in CMake (ENABLE_MODULE_OPENGL=ON) but didn’t set it up quite right and so it was not built.
There is an issue in the Chrono configuration where simply enabling a module sets it as “available” for demos (without checking that building that module was in fact successful). In other words, for now the burden is on the user to ensure that configuration and compilation of the Chrono modules they enable are successful. Until we make the Chrono configuration more robust, you should double check that you have successfully built the Chrono::OpenGL module and otherwise double check you provide its dependencies correctly.
--Radu
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