关于打包pywinauto程序，Module 'pythoncom' isn't in frozen sys.path错误

用pyinstaller打包pywinauto脚本为exe后，运行exe文件，出现错误，pyinstaller版本为4.8。在网上找了很久，没有找到类似的问题。想请教下前辈们，不知道能不能提供点思路，十分感谢，异常为：
Traceback (most recent call last):
File “Lib\site-packages\PyInstaller\hooks\rthooks\pyi_rth_win32comgenpy.py”, line 40, in
File “PyInstaller\loader\pyimod03_importers.py”, line 495, in exec_module
File “win32com_init_.py”, line 6, in
File “PyInstaller\loader\pyimod03_importers.py”, line 495, in exec_module
File “pythoncom.py”, line 4, in
File “pywintypes.py”, line 44, in import_pywin32_system_module
ImportError: Module ‘pythoncom’ isn’t in frozen sys.path [‘C:\Users\ADMINI1\AppData\Local\Temp\_MEI196282\base_library.zip’, ‘C:\Users\ADMINI1\AppData\Local\Temp\_MEI196282\lib-dynload’, ‘C:\Users\ADMINI~1\AppData\Local\Temp\_MEI196282’]