No blender dir

[heiheisao]

Hello, a message pops up from the system when i select "Windows Installation without Anaconda", that is "Please select the folder containing the Blender App". After locating the Blender folder, the system reported the following error:

No blender dir!
No Blender folder!
No blender dir!
Couldn't find Blender's bin folder! (2.??\python)
Traceback (most recent call last):
File "D:\mat_code\mmvt_root\mmvt_code\src\setup.py", line 363, in install_blender_reqs
blender_bin_fol, python_exe = get_blender_python_exe(blender_fol, gui)
File "D:\mat_code\mmvt_root\mmvt_code\src\setup.py", line 311, in get_blender_python_exe
fol = utils.choose_folder_gui(blender_parent_fol, 'Blender bin folder') if gui else input()
NameError: name 'blender_parent_fol' is not defined