Mohammad Fazli

Thanks or your reply. What .so file do you mean? There are so many of them in /lib or /usr/lib.

Still can't figure out what the problem is. I hope you can make it clear.

OK. 1- Ubuntu 16.04 2- Yes. I checked it through icoFoam -help. It works properly 3- This is the output of gcc command: COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/5/lto-wrapper Target: x86_64-linux-gnu Configured with: ../src/configure...

Still no opinion? I truly need to test our solver.