I always got an error while installing Parallels Tools on Pop!_OS 22.04 installed over Parallels version 19.0.0. When the Parallels team was contacted I was told Pop!_OS kernel is not supported and that they did not have an ETA for resolution. So poured over the installation log and came up with the following conclusion - log file - Code: Wed Sep 20 22:41:10 IST 2023 Start installation or upgrade of Guest Tools warning: the compiler differs from the one used to build the kernel The kernel was built by: x86_64-linux-gnu-gcc-12 (Ubuntu 12.3.0-1ubuntu1~22.04) 12.3.0 You are using: cc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0 cc: error: unrecognized command-line option '-ftrivial-auto-var-init=zero' make: *** [scripts/Makefile.build:252: /usr/lib/parallels-tools/kmods/prl_tg/Toolgate/Guest/Linux/prl_tg/prltg.o] Error 1 make: *** [Makefile:2038: /usr/lib/parallels-tools/kmods/prl_tg/Toolgate/Guest/Linux/prl_tg] Error 2 make: *** [Makefile:44: prl_tg] Error 2 make: *** [Makefile.kmods:48: compile] Error 2 Error: could not build kernel modules modprobe: FATAL: Module prl_tg not found in directory /lib/modules/6.4.6-76060406-generic modprobe: FATAL: Module prl_tg not found in directory /lib/modules/6.4.6-76060406-generic Error: failed to install Parallels Guest Tools! 2023-09-20T22:41:11+0530: execCmd: ./install --install  2023-09-20T22:41:11+0530: Error: An error occurred when installing Parallels Tools. Please go to /var/log/parallels-tools-install.log for more information. 2023-09-20T22:41:16+0530: Exiting with code 1 Examining the gcc installations in Pop!_OS I found that both "x86_64-linux-gnu-gcc-12 (Ubuntu 12.3.0-1ubuntu1~22.04) 12.3.0" and "gcc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0" were installed and symlink "/usr/bin/gcc" pointed to "/usr/bin/gcc-11". Changed the links to point to gcc-12 -> Code: cd /usr/bin sudo ln -sf gcc-12 gcc sudo ln -sf gcc-ar-12 gcc-ar sudo ln -sf gcc-nm-12 gcc-nm sudo ln -sf gcc-ranlib-12 gcc-ranlib sudo rm /usr/lib/parallels-tools sudo rm /var/lib/parallel-tools cd /media/harkantsingh/Parallels Tools #the mount directory of pro-tools-lin.iso sudo ./install It just worked.