
Traceback (most recent call last):


 "<string>", line 1, in <module>


 "C:\Users\shaz\Anaconda3\lib\site-packages\vispy\app\_default_app.py", line 47, in use_app

default_app = Application(backend_name)


 "C:\Users\shaz\Anaconda3\lib\site-packages\vispy\app\application.py", line 49, in __init__

self._use(backend_name)


 "C:\Users\shaz\Anaconda3\lib\site-packages\vispy\app\application.py", line 235, in _use

raise RuntimeError(msg)

RuntimeError: Could not import backend "Glfw":

Traceback (most recent call last):


 "/home/storage15/huangying/tools/anaconda3/envs/py36/lib/python3.6/runpy.py", line 193, in _run_module_as_main

"__main__", mod_spec)


 "/home/storage15/huangying/tools/anaconda3/envs/py36/lib/python3.6/runpy.py", line 85, in _run_code

exec(code, run_globals)


 "/home/storage15/huangying/tools/espnet/espnet2/bin/asr_train.py", line 23, in <module>

main()


 "/home/storage15/huangying/tools/espnet/espnet2/bin/asr_train.py", line 19, in main

ASRTask.main(cmd=cmd)


 "/home/storage15/huangying/tools/espnet/espnet2/tasks/abs_task.py", line 842, in main

cls.main_worker(args)


 "/home/storage15/huangying/tools/espnet/espnet2/tasks/abs_task.py", line 1174, in main_worker

distributed_option=distributed_option,


 "/home/storage15/huangying/tools/espnet/espnet2/train/trainer.py", line 163, in run

else None


 "/home/storage15/huangying/tools/anaconda3/envs/py36/lib/python3.6/site-packages/torch/nn/parallel/distributed.py", line 303, in __init__

self.broadcast_bucket_size)


 "/home/storage15/huangying/tools/anaconda3/envs/py36/lib/python3.6/site-packages/torch/nn/parallel/distributed.py", line 485, in _distributed_broadcast_coalesced

dist._broadcast_coalesced(self.process_group, tensors, buffer_size)
RuntimeError: NCCL error in: /pytorch/torch/lib/c10d/ProcessGroupNCCL.cpp:410, unhandled system error, NCCL version 2.4.8
