OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Warning message in bstep2d.cpp › Reply To: Warning message in bstep2d.cpp September 18, 2020 at 8:42 am #5137 mgaedtkeKeymaster Hi Bhuttu, this is just a warning from the gnuplot interface and will be fixed in the upcoming release. Thank’s for mentioning! Best Regards, Max