PX4 install of Gazebo

Hi I’m trying to make px4 run with gazebo. But I get below failure. Does anyone know what this means? and how to fix it? thanks.

razzdk@Razzs-MacBook-Pro PX4-Autopilot % sudo make px4_sitl gazebo
[2/286] Generating git version header
FAILED: src/lib/version/build_git_version.h /Users/razzdk/PX4-Autopilot/build/px4_sitl_default/src/lib/version/build_git_version.h
cd /Users/razzdk/PX4-Autopilot && /usr/local/bin/python3 /Users/razzdk/PX4-Autopilot/src/lib/version/px_update_git_header.py /Users/razzdk/PX4-Autopilot/build/px4_sitl_default/src/lib/version/build_git_version.h --validate
Traceback (most recent call last):
File “/Users/razzdk/PX4-Autopilot/src/lib/version/px_update_git_header.py”, line 139, in
mavlink_git_version = subprocess.check_output(‘git rev-parse --verify HEAD’.split(),
File “/usr/local/Cellar/python@3.9/3.9.13/Frameworks/Python.framework/Versions/3.9/lib/python3.9/subprocess.py”, line 424, in check_output
return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
File “/usr/local/Cellar/python@3.9/3.9.13/Frameworks/Python.framework/Versions/3.9/lib/python3.9/subprocess.py”, line 528, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command ‘[‘git’, ‘rev-parse’, ‘–verify’, ‘HEAD’]’ returned non-zero exit status 128.
[11/286] Building CXX object sr…dir/checks/airframeCheck.cpp.o
ninja: build stopped: subcommand failed.
make: *** [px4_sitl] Error 1