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[JaroslavVitku]

./build.py 
skip unreal engine option = False
update submodules...
updating submodule: PX4/Firmware
Cloning into '/home/jvitku/workspace/DroneSimLab/PX4/Firmware/Tools/sitl_gazebo'...
[email protected]: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
fatal: clone of '[email protected]:orig74/sitl_gazebo.git' into submodule path '/home/jvitku/workspace/DroneSimLab/PX4/Firmware/Tools/sitl_gazebo' failed
Failed to clone 'Tools/sitl_gazebo'. Retry scheduled
Cloning into '/home/jvitku/workspace/DroneSimLab/PX4/Firmware/Tools/sitl_gazebo'...
[email protected]: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
fatal: clone of '[email protected]:orig74/sitl_gazebo.git' into submodule path '/home/jvitku/workspace/DroneSimLab/PX4/Firmware/Tools/sitl_gazebo' failed
Failed to clone 'Tools/sitl_gazebo' a second time, aborting
Failed to recurse into submodule path 'PX4/Firmware'
Error:  failed updataing submodules.. please check you connection