ANSYS ICEMCFD ----- libGL error: unable to load driver: swrast_dri.so libGL error: failed to load driver: swrast

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When I start the icem cfd from command line, it gives me the errors of :
       libGL  error: unable to load driver: swrast_dri.so
       libGL error: failed to load driver: swrast
 It can be easily solved by spedifing the library used by the icemcfd directly as 

 env LD_LIBRARY_PATH=/home/ztdep/ansys_inc/v162/Framework/bin/Linux64/Mesa/           ./icemcfd


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