Traceback (most recent call last):


 "train.py", line 49, in <module>

from object_detection.builders import dataset_builder


 "D:\python_ver\python364\lib\site-packages\object_detection\builders\dataset_builder.py", line 27, in <module>

from object_detection.data_decoders import tf_example_decoder


 "D:\python_ver\python364\lib\site-packages\object_detection\data_decoders\tf_example_decoder.py", line 24, in <module>

from object_detection.protos import input_reader_pb2
ImportError: cannot import name 'input_reader_pb2'

ERROR: Signature extraction failed: Traceback (most recent call last):

 "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/youtube_dl/extractor/youtube.py", line 479, in _decrypt_signature
video_id, player_url, s

 "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/youtube_dl/extractor/youtube.py", line 383, in _extract_signature_function
res = self._parse_sig_js(code)

 "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/youtube_dl/extractor/youtube.py", line 454, in _parse_sig_js
u'Initial JS player signature function name')

 "/Library/Frameworks/Python.framework/Versions/3.4/lib/python3.4/site-packages/youtube_dl/extractor/common.py", line 391, in _search_regex
raise RegexNotFoundError(u'Unable to extract %s' % _name)youtube_dl.utils.RegexNotFoundError: Unable to extract Initial JS player signature function name; please report this issue on https://yt-dl.org/bug . Be sure to call youtube-dl with the --verbose flag and include its complete output. Make sure you are using the latest version; type
youtube-dl -U
to update.