OpenLB – Open Source Lattice Boltzmann Code › Forums › on OpenLB › General Topics › HPC OpenLB Code Compilation Error › Reply To: HPC OpenLB Code Compilation Error January 24, 2022 at 2:11 pm #6264 AdrianKeymaster This looks like an issue with your compiler environment. What compiler are you using and how did you load it into the environment? Does a simple C++ test program compile using this setup?