No such file or directory when using DataLoader.from_pascal_voc

Question

I'm having trouble using DataLoader.from_pascal_voc from TFLite Model Maker. I've successfully mounted Google Drive into Google Colab and when I printed the length of os.listdir, it shows the correct amount of data. Code for specifying training and testing path:

training_dir_images = '/content/drive/MyDrive/Skripsi/Data/Training/images'
training_dir_annotations = '/content/drive/MyDrive/Skripsi/Data/Training/annotations'

testing_dir_images = '/content/drive/MyDrive/Skripsi/Data/Test/images'
testing_dir_annotations = '/content/drive/MyDrive/Skripsi/Data/Test/annotations'

print(len(os.listdir(training_dir_images)))
print(len(os.listdir(training_dir_annotations)))
print(len(os.listdir(testing_dir_images)))
print(len(os.listdir(testing_dir_annotations)))
-----------------OUTPUT------------------
1700
1700
300
300

Here's the code when I tried to load the data using DataLoader:

training_data = object_detector.DataLoader.from_pascal_voc(training_dir_images, training_dir_annotations, label_map=labels)

test_data = object_detector.DataLoader.from_pascal_voc(testing_dir_images, testing_dir_annotations, label_map=labels)

Here's the error:

/usr/local/lib/python3.7/dist-packages/tensorflow/python/lib/io/file_io.py in _preread_check(self)
     78                                            "File isn't open for reading")
     79       self._read_buf = _pywrap_file_io.BufferedInputStream(
---> 80           compat.path_to_str(self.__name), 1024 * 512)
     81 
     82   def _prewrite_check(self):

NotFoundError: /content/drive/MyDrive/Skripsi/Data/Training/images/S_9; No such file or directory

I'm using tensorflow 2.5.0. Are there any solution to this problem? Thank you