我是Tensorflow的新手，正在尝试进行迁移学习的简单教程：https://tensorflow-object-detection-api-tutorial.readthedocs.io/en/latest/training.html。
当我尝试通过以下命令开始训练时：
python train.py --logtostderr --train_dir=training/ --pipeline_config_path=training/ssd_mobilenet_v2_coco.config
我收到以下错误：
WARNING: The TensorFlow contrib module will not be included in TensorFlow 2.0.
For more information, please see:
* https://github.com/tensorflow/community/blob/master/rfcs/20180907-contrib-sunset.md
* https://github.com/tensorflow/addons
If you depend on functionality not listed there, please file an issue.
WARNING:tensorflow:From /home/USER/.local/lib/python3.6/site-packages/tensorflow/python/platform/app.py:125: main (from __main__) is deprecated and will be removed in a future version.
Instructions for updating:
Use object_detection/model_main.py.
Traceback (most recent call last):
File "train.py", line 184, in <module>
tf.app.run()
File "/home/USER/.local/lib/python3.6/site-packages/tensorflow/python/platform/app.py", line 125, in run
_sys.exit(main(argv))
File "/home/USER/.local/lib/python3.6/site-packages/tensorflow/python/util/deprecation.py", line 324, in new_func
return func(*args, **kwargs)
File "train.py", line 180, in main
graph_hook_fn=graph_rewriter_fn)
File "/home/USER/AI_Workspace/models/research/object_detection/legacy/trainer.py", line 249, in train
detection_model = create_model_fn()
File "/home/USER/AI_Workspace/models/research/object_detection/builders/model_builder.py", line 132, in build
return _build_ssd_model(model_config.ssd, is_training, add_summaries)
File "/home/USER/AI_Workspace/models/research/object_detection/builders/model_builder.py", line 279, in _build_ssd_model
num_classes, ssd_config.add_background_class)
File "/home/USER/AI_Workspace/models/research/object_detection/builders/box_predictor_builder.py", line 690, in build
if config_box_predictor.HasField('box_encodings_clip_range'):
ValueError: Protocol message ConvolutionalBoxPredictor has no field box_encodings_clip_range.
我不知道这是什么意思。有谁知道它是什么以及可能导致什么？