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Missing libRGL

Hi,

It seems your ROOT is compiled without OpenGL support. I assume you build your own ROOT - in this case you need to have gl-dev and glu-dev packages installed before running configure (on Debian the packages are libgl1-mesa-dev and libglu1-mesa-dev).

You don't need a full rebuild, just do (after installing the packages):

cd $ROOTSYS
./configure `cat config.status`
# make sure opengl is mentioned in the features paragraph towards the end
make
Good luck! Matevz

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