How to perform the UKFTractography via command line on ubuntu 20.04?

I want to use the UKFTractography singlely in order to use batch process on my data for tractography.
when I make the code UKFTractography from github,I met the problem.
I use the correct command from author.
fatal: not a git repository (or any of the parent directories): .git
make[5]: *** [ukf/CMakeFiles/_GEN_GITVER.dir/build.make:60: ukf/CMakeFiles/GEN
make[4]: *** [CMakeFiles/Makefile2:1043: ukf/CMakeFiles/_GEN_GITVER.dir/all] Err
make[3]: *** [Makefile:141: all] Error 2
make[2]: *** [CMakeFiles/UKFTractography.dir/build.make:119: UKFTractography-prey-build] Error 2
make[1]: *** [CMakeFiles/Makefile2:123: CMakeFiles/UKFTractography.dir/all] Erro
make: *** [Makefile:95: all] Error 2