Jupyter notebook audioread.nobackend error

[Neel nath]

_RemoteTraceback Traceback (most recent call last)
_RemoteTraceback:
"""
Traceback (most recent call last):
File "C:\Users\neel.nath\AppData\Local\Programs\Python\Python36\Lib\site-packages\joblib\externals\loky\process_executor.py", line 398, in process_worker
r = call_item.fn(*call_item.args, **call_item.kwargs)
File "C:\Users\neel.nath\AppData\Local\Programs\Python\Python36\Lib\site-packages\joblib_parallel_backends.py", line 561, in call
return self.func(*args, **kwargs)
File "C:\Users\neel.nath\AppData\Local\Programs\Python\Python36\Lib\site-packages\joblib\parallel.py", line 224, in call
for func, args, kwargs in self.items]
File "C:\Users\neel.nath\AppData\Local\Programs\Python\Python36\Lib\site-packages\joblib\parallel.py", line 224, in
for func, args, kwargs in self.items]
File "", line 6, in save_folds
File "", line 15, in extract_features
File "", line 4, in read_audio
File "C:\Users\neel.nath\AppData\Local\Programs\Python\Python36\Lib\site-packages\librosa\core\audio.py", line 112, in load
with audioread.audio_open(os.path.realpath(path)) as input_file:
File "C:\Users\neel.nath\AppData\Local\Programs\Python\Python36\Lib\site-packages\audioread_init.py", line 116, in audio_open
raise NoBackendError()
audioread.NoBackendError
"""

The above exception was the direct cause of the following exception:

NoBackendError Traceback (most recent call last)
in ()

~\AppData\Local\Programs\Python\Python36\Lib\site-packages\joblib\parallel.py in call(self, iterable)
960
961 with self._backend.retrieval_context():
--> 962 self.retrieve()
963 # Make sure that we get a last message telling us we are done
964 elapsed_time = time.time() - self._start_time

~\AppData\Local\Programs\Python\Python36\Lib\site-packages\joblib\parallel.py in retrieve(self)
863 try:
864 if getattr(self._backend, 'supports_timeout', False):
--> 865 self._output.extend(job.get(timeout=self.timeout))
866 else:
867 self._output.extend(job.get())

~\AppData\Local\Programs\Python\Python36\Lib\site-packages\joblib_parallel_backends.py in wrap_future_result(future, timeout)
513 AsyncResults.get from multiprocessing."""
514 try:
--> 515 return future.result(timeout=timeout)
516 except LokyTimeoutError:
517 raise TimeoutError()

~\AppData\Local\Programs\Python\Python36\Lib\site-packages\joblib\externals\loky_base.py in result(self, timeout)
429 raise CancelledError()
430 elif self._state == FINISHED:
--> 431 return self.__get_result()
432 else:
433 raise TimeoutError()

~\AppData\Local\Programs\Python\Python36\Lib\site-packages\joblib\externals\loky_base.py in __get_result(self)
380 def __get_result(self):
381 if self._exception:
--> 382 raise self._exception
383 else:
384 return self._result

NoBackendError:

[Adrian Sampson]

It's not particularly useful to open an issue that just consists of a stacktrace (and an unreadable one at that). You might be interested in some advice about how to file a bug:
https://www.cs.cornell.edu/~asampson/blog/bugrubric.html