Hi HelpDesk, My box: Linux sg1-ldev-pioneer 3.10.0-1160.25.1.el7.x86_64 #1 SMP Tue Apr 13 18:55:45 EDT 2021 x86_64 x86_64 x86_64 GNU/Linux g++ (GCC) 10.2.1 20210130 (Red Hat 10.2.1-11) Copyright (C) 2020 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. /opt/rh/devtoolset-10/root/usr/libexec/gcc/x86_64-redhat-linux/10/ld: /opt/rh/devtoolset-10/root/usr/libexec/gcc/x86_64-redhat-linux/10/ld: DWARF error: could not find variable specification at offset 952de Thanks. Ming CHENG