Build error on Ubuntu 24.04 RTX 3050 550.90.07

[cccpcpp]

Can't get around this:

[build] Starting build [proc] Executing command: /usr/bin/cmake --build /home/dm/Code/VulkanReference/vk_video_samples/vk_video_decoder/build --config Release --target all -j 18 -- [build] gmake[2]: *** No rule to make target '/home/dm/Code/VulkanReference/vk_video_samples/vk_video_decoder/external/glslang/External/spirv-tools/.git/index', needed by 'spirv_tools_commit_id.h'. Stop. [build] gmake[1]: *** [CMakeFiles/Makefile2:137: CMakeFiles/generate_helper_files.dir/all] Error 2 [build] gmake[1]: *** Waiting for unfinished jobs....

Any ideas? I have the latest and greatest, Vulkan SDK etc etc...