Tensorflow 未实现错误：文件系统方案'；[本地]'；未实施（文件：'；/content/drive/MyDrive/foop/train/bete\u sala/2056837.jpg'；）

错误：

未实现文件系统方案“[local]”（文件：'/content/drive/MyDrive/foop/train/bete_sala/2056837.jpg'）[[{node ReadFile}}]]
... 导入操作系统

from google.colab import drive
drive.mount('/content/drive', force_remount=True)

import matplotlib.pyplot as plt
import numpy as np
import os
import tensorflow as tf

from tensorflow.keras.preprocessing import image_dataset_from_directory

import tensorflow as tf

import os
import tensorflow_datasets as tfds

resolver = tf.distribute.cluster_resolver.TPUClusterResolver(tpu='')
tf.config.experimental_connect_to_cluster(resolver)
# This is the TPU initialization code that has to be at the beginning.
tf.tpu.experimental.initialize_tpu_system(resolver)
print("All devices: ", tf.config.list_logical_devices('TPU'))

strategy = tf.distribute.TPUStrategy(resolver)

#PATH = 
P2 = os.path.join('/content', 'drive', 'MyDrive', 'foop', 'train')
P3 = os.path.join('/content', 'drive', 'MyDrive', 'foop', 'testt')
train_dir = P2 #= os.path.join('/content', 'drive', 'MyDrive', 'foop', 'train')
test_dir = P3

BATCH_SIZE = 32
IMG_SIZE = (160, 160)

train_dataset = image_dataset_from_directory(train_dir, shuffle=True, batch_size=BATCH_SIZE, image_size=IMG_SIZE)

test_dataset = image_dataset_from_directory(test_dir, shuffle=True, batch_size=BATCH_SIZE, image_size=IMG_SIZE)

class_names = train_dataset.class_names

print(class_names)

val_batches = tf.data.experimental.cardinality(test_dataset)
val_dataset = test_dataset.take(val_batches // 5)
test_dataset = test_dataset.skip(val_batches // 5)

print('NUM val batches : %d' % tf.data.experimental.cardinality(test_dataset))
print('NUM test batches : %d' % tf.data.experimental.cardinality(val_dataset))

AUTOTUNE = tf.data.AUTOTUNE

train_dataset = train_dataset.prefetch(buffer_size=AUTOTUNE)
test_dataset = test_dataset.prefetch(buffer_size=AUTOTUNE)
val_dataset = val_dataset.prefetch(buffer_size=AUTOTUNE)

preprocess_input = tf.keras.applications.resnet50.preprocess_input

rescale = tf.keras.layers.experimental.preprocessing.Rescaling(1./127.5, offset= -1)

IMG_SHAPE = IMG_SIZE + (3,)
#base_model = tf.keras.applications.ResNet50()

image_batch, label_batch = next(iter(train_dataset))

with strategy.scope():
  base_model = tf.keras.applications.ResNet50(include_top=False, weights='imagenet', 
  input_tensor=None, input_shape=None, pooling=None, classes=101)
  **image_batch, label_batch = next(iter(train_dataset))**
  feature_batch = base_model(image_batch)
  print(feature_batch.shape)
  base_model.trainable = False
  #base_model.summary()
  global_average_layer = tf.keras.layers.GlobalAveragePooling2D()
  feature_batch_average = global_average_layer(feature_batch)
  print(feature_batch_average.shape)
  prediction_layer = tf.keras.layers.Dense(1)
  prediction_batch = prediction_layer(feature_batch_average)
  print(prediction_batch.shape)
  inputs = tf.keras.Input(shape=(160, 160, 3))
  #x = data_augmentation(inputs)
  x = inputs
  x = preprocess_input(x)
  x = base_model(x, training=False)
  x = global_average_layer(x)
  x = tf.keras.layers.Dropout(0.2)(x)
  outputs = prediction_layer(x)
  model = tf.keras.Model(inputs, outputs)
  base_learning_rate = 0.0001
  model.compile(optimizer=tf.keras.optimizers.Adam(lr=base_learning_rate),
              loss=tf.keras.losses.BinaryCrossentropy(from_logits=True),
              metrics=['accuracy'])


...

我是google colab TPU运行时上分布式tf的新手。请帮助我解决这个问题，如果我正在做的事情中还有其他错误，请指出

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正如@Andrey所指出的，我如何修改“image\u batch，label\u batch=next（iter（train\u dataset））”

这有帮助吗？这是一个类似的问题，但我不知道如何修改“image\u batch，label\u batch=next（iter（train\u dataset）），因为他们在上述问题中修改了tf.io。的答案也适用于此错误。