Generating: "/home/marcus/src/reproductions/cppgen/busports"
>>> Warning: This flow graph may not have flow control: no audio or RF hardware blocks found. Add a Misc->Throttle block to your flow graph to avoid CPU congestion.
Generate Error: 'CppTopBlockGenerator' object has no attribute 'get_parent_by_type'
>>> Failure
Traceback (most recent call last):
  File "/home/marcus/.usrlocal/lib64/python3.11/site-packages/gnuradio/grc/gui/Application.py", line 758, in _handle_action
    generator.write()
  File "/home/marcus/.usrlocal/lib64/python3.11/site-packages/gnuradio/grc/core/generator/cpp_top_block.py", line 101, in write
    for filename, data in self._build_cpp_header_code_from_template():
                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/marcus/.usrlocal/lib64/python3.11/site-packages/gnuradio/grc/core/generator/cpp_top_block.py", line 162, in _build_cpp_header_code_from_template
    connections=self._connections(),
                ^^^^^^^^^^^^^^^^^^^
  File "/home/marcus/.usrlocal/lib64/python3.11/site-packages/gnuradio/grc/core/generator/cpp_top_block.py", line 495, in _connections
    connection = fg.parent_platform.Connection(
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/marcus/.usrlocal/lib64/python3.11/site-packages/gnuradio/grc/gui/canvas/connection.py", line 39, in __init__
    super(self.__class__, self).__init__(*args, **kwargs)
  File "/home/marcus/.usrlocal/lib64/python3.11/site-packages/gnuradio/grc/core/Connection.py", line 56, in __init__
    param_factory = self.parent_platform.make_param
                    ^^^^^^^^^^^^^^^^^^^^
  File "/home/marcus/.usrlocal/lib64/python3.11/site-packages/gnuradio/grc/core/utils/descriptors/_lazy.py", line 48, in __get__
    value = self.func(instance)
            ^^^^^^^^^^^^^^^^^^^
  File "/home/marcus/.usrlocal/lib64/python3.11/site-packages/gnuradio/grc/core/base.py", line 108, in parent_platform
    return self.get_parent_by_type(Platform)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/marcus/.usrlocal/lib64/python3.11/site-packages/gnuradio/grc/core/base.py", line 103, in get_parent_by_type
    return parent.get_parent_by_type(cls)
           ^^^^^^^^^^^^^^^^^^^^^^^^^
AttributeError: 'CppTopBlockGenerator' object has no attribute 'get_parent_by_type'