我正在尝试使用此处的TF-slim源代码测试传输学习：https://github.com/tensorflow/models/blob/master/slim/train_image_classifier.py
我使用的数据集是鲜花数据集，我已根据代码的要求将其转换为TFRecords。我还采取了预防措施，不将TFRecords文件保存在我的tmp文件夹中，因为它将面临我之前遇到的权限错误。但是，尽管指定要恢复的检查点，但我得到了一个令人费解的INFO:tensorflow:Fine-tuning from None标准输出。然后错误继续给我一个TypeError，可以在下面的错误跟踪中找到。
我运行了以下命令：
python train_image_classifier.py --optimizer=adam --dataset_name=flowers --dataset_dir=/home/kwotsin/Datasets/flower_photos_tfrecords/ --model_name=inception_resnet_v2 --train_image_size=299 --checkpoint_path=/home/kwotsin/Datasets/Inception_resnet_v2_weights/
为什么TensorFlow无法检测到.ckpt文件的存在以恢复模型并从那时起进行微调？
这是我的错误堆栈跟踪：
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcublas.so locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcudnn.so locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcufft.so locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcuda.so.1 locally
I tensorflow/stream_executor/dso_loader.cc:111] successfully opened CUDA library libcurand.so locally
INFO:tensorflow:Fine-tuning from None
I tensorflow/stream_executor/cuda/cuda_gpu_executor.cc:925] successful NUMA node read from SysFS had negative value (-1), but there must be at least one NUMA node, so returning NUMA node zero
I tensorflow/core/common_runtime/gpu/gpu_device.cc:951] Found device 0 with properties:
name: GeForce GTX 860M
major: 5 minor: 0 memoryClockRate (GHz) 1.0195
pciBusID 0000:01:00.0
Total memory: 3.95GiB
Free memory: 3.35GiB
I tensorflow/core/common_runtime/gpu/gpu_device.cc:972] DMA: 0
I tensorflow/core/common_runtime/gpu/gpu_device.cc:982] 0: Y
I tensorflow/core/common_runtime/gpu/gpu_device.cc:1041] Creating TensorFlow device (/gpu:0) -> (device: 0, name: GeForce GTX 860M, pci bus id: 0000:01:00.0)
INFO:tensorflow:Error reported to Coordinator: <type 'exceptions.TypeError'>, Expected binary or unicode string, got None
Traceback (most recent call last):
File "train_image_classifier.py", line 585, in <module>
tf.app.run()
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/platform/app.py", line 30, in run
sys.exit(main(sys.argv[:1] + flags_passthrough))
File "train_image_classifier.py", line 581, in main
sync_optimizer=optimizer if FLAGS.sync_replicas else None)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/contrib/slim/python/slim/learning.py", line 753, in train
master, start_standard_services=False, config=session_config) as sess:
File "/usr/lib/python2.7/contextlib.py", line 17, in __enter__
return self.gen.next()
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/training/supervisor.py", line 969, in managed_session
self.stop(close_summary_writer=close_summary_writer)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/training/supervisor.py", line 797, in stop
stop_grace_period_secs=self._stop_grace_secs)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/training/coordinator.py", line 386, in join
six.reraise(*self._exc_info_to_raise)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/training/supervisor.py", line 958, in managed_session
start_standard_services=start_standard_services)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/training/supervisor.py", line 715, in prepare_or_wait_for_session
init_feed_dict=self._init_feed_dict, init_fn=self._init_fn)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/training/session_manager.py", line 235, in prepare_session
init_fn(sess)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/contrib/framework/python/ops/variables.py", line 581, in callback
saver.restore(session, model_path)
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/training/saver.py", line 1340, in restore
if not file_io.get_matching_files(file_path):
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/lib/io/file_io.py", line 231, in get_matching_files
compat.as_bytes(filename), status)]
File "/usr/local/lib/python2.7/dist-packages/tensorflow/python/util/compat.py", line 64, in as_bytes
(bytes_or_text,))
TypeError: Expected binary or unicode string, got None