NotFoundError：指定训练目录不存在的问题解决求助

大家好，我是韩国开发者，英文写作不太熟练，还请大家多多包涵🙏。

我在运行代码时遇到了一个错误，具体报错信息如下：

NotFoundError: Could not find directory C://Users/Admin/Downloads/assignment2/train

想请教各位前辈，这个问题该怎么解决呢？

下面是我编写的代码：

import os
import tensorflow as tf
from tensorflow import keras

base_dir = 'C:/Users/Admin/Downloads/assignment2'

train_dir = os.path.join(base_dir, 'train')
test_dir = os.path.join(base_dir, 'test')

batch_size = 32
num_of_train_imgs = 3934
num_of_test_imgs = 1966
img_height = 50
img_width = 50

train_ds = tf.keras.preprocessing.image_dataset_from_directory(
train_dir,
validation_split=0.2,
subset="training",
seed=123,
image_size=(img_height, img_width),
batch_size=num_of_train_imgs)

val_ds = tf.keras.preprocessing.image_dataset_from_directory(
train_dir,
validation_split=0.2,
subset="validation",
seed=123,
image_size=(img_height, img_width),
batch_size=num_of_train_imgs)

test_ds = tf.keras.preprocessing.image_dataset_from_directory(
test_dir,
image_size=(img_height, img_width),
batch_size=num_of_test_imgs)

备注：内容来源于stack exchange，提问作者park