OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › I cannot run cylinder2d example?! › Re: I cannot run cylinder2d example?! March 15, 2018 at 6:41 pm #2808 Markus MohrhardParticipant Hello Luis, please just call make and if that still produces an error paste your command and the error message. Regards, Markus