ModuleNotFoundError: No module named 'face_alignment'

[modoneer]

Hi, I ran the demo code
python demos/demo_reconstruct.py -i TestSamples/examples --saveDepth True --saveObj True
and got this error message:

total 9 images
Traceback (most recent call last):
File "F:\Softwares\AI\DECA-master\demos\demo_reconstruct.py", line 103, in main(parser.parse_args())
File "F:\Softwares\AI\DECA-master\demos\demo_reconstruct.py", line 36, in main
testdata = datasets.TestData(args.inputpath, iscrop=args.iscrop, face_detector=args.detector)
File "F:\Softwares\AI\DECA-master\decalib\datasets\datasets.py", line 70, in init
self.face_detector = detectors.FAN()
File "F:\Softwares\AI\DECA-master\decalib\datasets\detectors.py", line 21, in init
import face_alignment
ModuleNotFoundError: No module named 'face_alignment'

Not sure what's going wrong.

Several things I noticed but not sure if they are related to this issue:

1. After ran python demos/demo_reconstruct.py --help
   it mentioned "detector for cropping face, check decalib/detectors.py for details", but detectors.py is located in decalib\datasets directory.
2. Inside BFM_to_FLAME folder (after unzip) there's no FLAME_albedo_from_BFM.npz but BFM_to_FLAME_corr.npz. Do I need to change the filename to BFLAME_albedo_from_BFM.npz and place it to .\data?

Thanks