local docker error

#### C:\Users\msq\temp1> docker exec higlass-container python higlass-server/manage.py ingest_tileset --filename .\50k_output.cool --filetype cooler --datatype matrix

uid: YG6qIG1WS8iMmff_j3E2Ag
Traceback (most recent call last):
File "higlass-server/manage.py", line 22, in
execute_from_command_line(sys.argv)
File "/opt/conda/lib/python3.6/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line
utility.execute()
File "/opt/conda/lib/python3.6/site-packages/django/core/management/__init__.py", line 365, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/opt/conda/lib/python3.6/site-packages/django/core/management/base.py", line 288, in run_from_argv
self.execute(*args, **cmd_options)
File "/opt/conda/lib/python3.6/site-packages/django/core/management/base.py", line 335, in execute
output = self.handle(*args, **options)
File "/home/higlass/projects/higlass-server/tilesets/management/commands/ingest_tileset.py", line 52, in handle
django_file = File(open(filename, 'rb'))
FileNotFoundError: [Errno 2] No such file or directory: '.\\50k_output.cool'
#### C:\Users\msq\temp1> ls

目录: C:\Users\msq\temp1

Mode LastWriteTime Length Name
---- ------------- ------ ----
-a---- 2019/3/22 9:07 3808854 50k_output.cool
-a---- 2019/3/22 22:59 0 nginx-stderr---supervisor-HCMZTI.log
-a---- 2019/3/22 22:59 0 nginx-stdout---supervisor-RjNur2.log
-a---- 2019/3/22 23:42 10306 uwsgi-stderr---supervisor-IiVarm.log
-a---- 2019/3/22 23:00 1168 uwsgi-stdout---supervisor-w6z1vS.log

####C:\Users\msq\temp1> docker exec higlass-container python higlass-server/manage.py ingest_tileset --filename 50k_output.cool --filetype cooler --datatype matrix
uid: DkZln6pXTyaDuevA5T-iaw
Traceback (most recent call last):
File "higlass-server/manage.py", line 22, in
execute_from_command_line(sys.argv)
File "/opt/conda/lib/python3.6/site-packages/django/core/management/__init__.py", line 371, in execute_from_command_line
utility.execute()
File "/opt/conda/lib/python3.6/site-packages/django/core/management/__init__.py", line 365, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "/opt/conda/lib/python3.6/site-packages/django/core/management/base.py", line 288, in run_from_argv
self.execute(*args, **cmd_options)
File "/opt/conda/lib/python3.6/site-packages/django/core/management/base.py", line 335, in execute
output = self.handle(*args, **options)
File "/home/higlass/projects/higlass-server/tilesets/management/commands/ingest_tileset.py", line 52, in handle
django_file = File(open(filename, 'rb'))
FileNotFoundError: [Errno 2] No such file or directory: '50k_output.cool'

Why it says there is no such file?I'm confused.