How can I fix this "Failed to load entry point '###' : invalid syntax~"

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Hello all,

I have been made a YOCTO recipe with ROS2 Crystal version. After build-up, try to run with 'ros2 -h' command on raspberrypi board.

But it show some errors and I couldn't find why these errors were shown.

root@raspberrypi3:~# ros2 -h
Failed to load entry point 'launch': invalid syntax (logging.py, line 409)
Failed to load entry point 'start': invalid syntax (node.py, line 102)
Failed to load entry point 'status': invalid syntax (node.py, line 102)
Failed to load entry point 'stop': invalid syntax (node.py, line 102)
Failed to load entry point 'set': invalid syntax (node.py, line 102)
Failed to load entry point 'nodes': invalid syntax (node.py, line 102)
Failed to load entry point 'get': invalid syntax (node.py, line 102)
Failed to load entry point 'list': invalid syntax (node.py, line 102)
Failed to load entry point 'info': invalid syntax (node.py, line 102)
Failed to load entry point 'list': invalid syntax (node.py, line 102)
Failed to load entry point 'delete': invalid syntax (node.py, line 102)
Failed to load entry point 'list': invalid syntax (node.py, line 102)
... ...

After this error shown, a help messages were printed.

I think that some of python script with these command dictionary was not installed but I couldn't find it.

Is there any idea to fix this?