Traceback (most recent call last):


 "/usr/bin/youtube-dl", line 8, in <module>

sys.exit(main())


 "/usr/lib/python3.9/site-packages/youtube_dl/__init__.py", line 475, in main

_real_main(argv)


 "/usr/lib/python3.9/site-packages/youtube_dl/__init__.py", line 465, in _real_main

retcode = ydl.download(all_urls)


 "/usr/lib/python3.9/site-packages/youtube_dl/YoutubeDL.py", line 2059, in download

res = self.extract_info(


 "/usr/lib/python3.9/site-packages/youtube_dl/YoutubeDL.py", line 799, in extract_info

return self.__extract_info(url, ie, download, extra_info, process)


 "/usr/lib/python3.9/site-packages/youtube_dl/YoutubeDL.py", line 806, in wrapper

return func(self, *args, **kwargs)


 "/usr/lib/python3.9/site-packages/youtube_dl/YoutubeDL.py", line 827, in __extract_info

ie_result = ie.extract(url)


 "/usr/lib/python3.9/site-packages/youtube_dl/extractor/common.py", line 534, in extract

ie_result = self._real_extract(url)


 "/usr/lib/python3.9/site-packages/youtube_dl/extractor/crunchyroll.py", line 456, in _real_extract

video_title = re.sub(r'^Watch\s+', '', self._og_search_description(webpage))


 "/usr/lib/python3.9/re.py", line 210, in sub

return _compile(pattern, flags).sub(repl, string, count)
TypeError: expected string or bytes-like object

Traceback (most recent call last):


 "run_mlm2.py", line 388, in <module>

main()


 "run_mlm2.py", line 333, in main

tokenized_datasets = tokenized_datasets.map(


 "/home/zeyuy/miniconda3/lib/python3.8/site-packages/datasets/dataset_dict.py", line 283, in map

{


 "/home/zeyuy/miniconda3/lib/python3.8/site-packages/datasets/dataset_dict.py", line 284, in <dictcomp>

k: dataset.map(


 "/home/zeyuy/miniconda3/lib/python3.8/site-packages/datasets/arrow_dataset.py", line 1236, in map

update_data = does_function_return_dict(test_inputs, test_indices)


 "/home/zeyuy/miniconda3/lib/python3.8/site-packages/datasets/arrow_dataset.py", line 1207, in does_function_return_dict
function(*fn_args, indices, **fn_kwargs) if with_indices else function(*fn_args, **fn_kwargs)


 "run_mlm2.py", line 315, in group_texts

concatenated_examples = {k: sum(examples[k], []) for k in examples.keys()}


 "run_mlm2.py", line 315, in <dictcomp>

concatenated_examples = {k: sum(examples[k], []) for k in examples.keys()}
TypeError: can only concatenate list (not "str") to list
