new Djangae scaffold runserver error

[vincent Alexander]

i'm new to djangae and intent to use djangae to deploy a web service on GAE
after running djangae scaffold, pip install requirement and requirement-dev
django==3.2.18

djangae==2.0.0rc3

python==3.8.10

google-cloud-datastore==2.15.1
google cloud sdk==427.0.0

cloud-datastore-emulator==2.3.0

redhat-java-11-openjdk-jre==11.0.19 (tested with gcloud beta emulators datastore start starting)

python manage.py runserver return an error... it's a clean djangae scaffold
any documentation of supported cloud sdk version?

(djangaegae) D:\Djangoenv\djangaegae\newsite>py manage.py runserver
Traceback (most recent call last):
  File "manage.py", line 35, in <module>
    main()
  File "manage.py", line 27, in main
    start_emulators(persist_data="test" not in sys.argv)
  File "D:\Djangoenv\djangaegae\lib\site-packages\djangae\sandbox.py", line 171, in start_emulators
    _ACTIVE_EMULATORS["datastore"] = _launch_process(command)
  File "D:\Djangoenv\djangaegae\lib\site-packages\djangae\sandbox.py", line 44, in _launch_process
    return subprocess.Popen(command_line.split(" "), env=env)
  File "C:\Users\yepings\AppData\Local\Programs\Python\Python38\lib\subprocess.py", line 858, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "C:\Users\yepings\AppData\Local\Programs\Python\Python38\lib\subprocess.py", line 1311, in _execute_child
    hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 2] The system cannot find the file specified