Traceback (most recent call last):


 "/opt/az/local/lib/python2.7/site-packages/pip/basecommand.py", line 215, in main

status = self.run(options, args)


 "/opt/az/local/lib/python2.7/site-packages/pip/commands/install.py", line 317, in run

prefix=options.prefix_path,


 "/opt/az/local/lib/python2.7/site-packages/pip/req/req_set.py", line 736, in install

requirement.uninstall(auto_confirm=True)


 "/opt/az/local/lib/python2.7/site-packages/pip/req/req_install.py", line 742, in uninstall

paths_to_remove.remove(auto_confirm)


 "/opt/az/local/lib/python2.7/site-packages/pip/req/req_uninstall.py", line 115, in remove

renames(path, new_path)


 "/opt/az/local/lib/python2.7/site-packages/pip/utils/__init__.py", line 267, in renames

shutil.move(old, new)


 "/usr/lib/python2.7/shutil.py", line 303, in move

os.unlink(src)
OSError: [Errno 13] Permission denied: '/opt/az/bin/easy_install'

Original Traceback (most recent call last):


 "C:\Users\asus\Anaconda3\envs\pytorch1.4p3.7\lib\site-packages\torch\utils\data\_utils\worker.py", line 178, in _worker_loop

data = fetcher.fetch(index)


 "C:\Users\asus\Anaconda3\envs\pytorch1.4p3.7\lib\site-packages\torch\utils\data\_utils\fetch.py", line 44, in fetch

data = [self.dataset[idx] for idx in possibly_batched_index]


 "C:\Users\asus\Anaconda3\envs\pytorch1.4p3.7\lib\site-packages\torch\utils\data\_utils\fetch.py", line 44, in <listcomp>

data = [self.dataset[idx] for idx in possibly_batched_index]


 "C:\Users\asus\Anaconda3\envs\pytorch1.4p3.7\lib\site-packages\torch\utils\data\dataset.py", line 256, in __getitem__

return self.dataset[self.indices[idx]]


 "D:\code\Pytorch-UNet-master\utils\dataset.py", line 50, in __getitem__

f'Either no mask or multiple masks found for the ID {idx}: {mask_file}'
AssertionError: Either no mask or multiple masks found for the ID 351c583eabd6_14: []