New to LBM and OpenLB? Attend our upcoming one-week hands-on Spring School in Marseille/France from 19.05.2025 – 23.05.2025. OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › Compilation error › Reply To: Compilation error November 3, 2023 at 3:44 pm #7882 Ali FauzeParticipant Dear community, I resolved the problem using the functor IndicatorCircle3D. BR. Ali