The 19.0.8_3 update added support for the glesv1 library. This change apparently conflicts with the proprietary NVidia driver: ===> Installing for mesa-libs-19.0.8_3 ===> Checking if mesa-libs is already installed ===> Registering installation for mesa-libs-19.0.8_3 as automatic Installing mesa-libs-19.0.8_3... pkg-static: mesa-libs-19.0.8_3 conflicts with nvidia-driver-440.100 (installs files into the same place). Problematic file: /usr/local/lib/libGLESv1_CM.so *** Error code 70 Stop. make[1]: stopped in /usr/ports/graphics/mesa-libs 19.0.8_2 works fine
Update your ports tree, this has been fixed already. *** This bug has been marked as a duplicate of bug 249448 ***