cannot find forkserver

[StefanGrindelwald]

Traceback (most recent call last):
File "main.py", line 104, in
mp = _mp.get_context('forkserver')
File "D:\Software\Python\lib\multiprocessing\context.py", line 238, in get_context
return super().get_context(method)
File "D:\Software\Python\lib\multiprocessing\context.py", line 192, in get_context
raise ValueError('cannot find context for %r' % method) from None
ValueError: cannot find context for 'forkserver'

[wu-yang-work]

I meet the same problem，just comment it, it will work well。this will happen in windows.