output error

[pepebc]

When exec it gives an error:
(i think there is some problem with the typing package)

Traceback (most recent call last):
File "/usr/local/bin/rhasspy-wake-raven", line 11, in
load_entry_point('rhasspy-wake-raven==0.2.0', 'console_scripts', 'rhasspy-wake-raven')()
File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 490, in load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 2854, in load_entry_point
return ep.load()
File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 2445, in load
return self.resolve()
File "/usr/lib/python3/dist-packages/pkg_resources/init.py", line 2451, in resolve
module = import(self.module_name, fromlist=['name'], level=0)
File "", line 991, in _find_and_load
File "", line 975, in _find_and_load_unlocked
File "", line 655, in _load_unlocked
File "", line 618, in _load_backward_compatible
File "", line 259, in load_module
File "/usr/local/lib/python3.8/dist-packages/rhasspy_wake_raven-0.2.0-py3.8.egg/rhasspywake_raven/init.py", line 4, in
File "/usr/local/lib/python3.8/dist-packages/typing.py", line 1359, in
class Callable(extra=collections_abc.Callable, metaclass=CallableMeta):
File "/usr/local/lib/python3.8/dist-packages/typing.py", line 1007, in new
self._abc_registry = extra._abc_registry
AttributeError: type object 'Callable' has no attribute '_abc_registry'