How to solve the problem:PermissionError: [Errno 13] Permission denied: '/data'

2022-03-15 15:37:57.573 | INFO | main::157 - Create soft link to /data/Outputs/model_logs/cvpods_playground/detection/coco/fcos/fcos.res50.fpn.coco.800size.1x
2022-03-15 15:37:57.607 | ERROR | cvpods.engine.launch:launch:64 - An error has been caught in function 'launch', process 'MainProcess' (15181), thread 'MainThread' (140337650262208):
Traceback (most recent call last):

File "/icislab/volume1/wjm/cvpods/tools/train_net.py", line 165, in
args=(args, config, build_model),
│ │ └ <function build_model at 0x7fa13a3dd290>
│ └ ╒═════════════════╤═════════════════════════════════════════════════════════════════════════════════════════════════╕
│ │ confi...
└ Namespace(clearml=False, dir=None, dist_url='tcp://127.0.0.1:50206', eval_only=False, machine_rank=0, num_gpus=1, num_machine...

File "/icislab/volume1/wjm/cvpods/cvpods/engine/launch.py", line 64, in launch
main_func(*args)
│ └ (Namespace(clearml=False, dir=None, dist_url='tcp://127.0.0.1:50206', eval_only=False, machine_rank=0, num_gpus=1, num_machin...
└ <function main at 0x7fa2e67a73b0>

File "/icislab/volume1/wjm/cvpods/tools/train_net.py", line 82, in main
cfg = default_setup(config, args)
│ │ └ Namespace(clearml=False, dir=None, dist_url='tcp://127.0.0.1:50206', eval_only=False, machine_rank=0, num_gpus=1, num_machine...
│ └ ╒═════════════════╤═════════════════════════════════════════════════════════════════════════════════════════════════╕
│ │ confi...
└ <function default_setup at 0x7fa13a3d05f0>

File "/icislab/volume1/wjm/cvpods/cvpods/engine/setup.py", line 131, in default_setup
ensure_dir(output_dir)
│ └ '/data/Outputs/model_logs/cvpods_playground/detection/coco/fcos/fcos.res50.fpn.coco.800size.1x'
└ <function ensure_dir at 0x7fa1577545f0>

File "/icislab/volume1/wjm/cvpods/cvpods/utils/file/file_io.py", line 22, in ensure_dir
megfile.smart_makedirs(path, exist_ok=True)
│ │ └ '/data/Outputs/model_logs/cvpods_playground/detection/coco/fcos/fcos.res50.fpn.coco.800size.1x'
│ └ <function smart_makedirs at 0x7fa157752c20>
└ <module 'megfile' from '/home/weijinmeng/.local/lib/python3.7/site-packages/megfile/init.py'>

File "/home/weijinmeng/.local/lib/python3.7/site-packages/megfile/smart.py", line 443, in smart_makedirs
SmartPath(path).makedirs(exist_ok)
│ │ └ True
│ └ '/data/Outputs/model_logs/cvpods_playground/detection/coco/fcos/fcos.res50.fpn.coco.800size.1x'
└ <class 'megfile.smart_path.SmartPath'>
File "/home/weijinmeng/.local/lib/python3.7/site-packages/megfile/pathlike.py", line 245, in makedirs
self.mkdir(exist_ok=exist_ok)
│ │ └ True
│ └ <function _bind_function..smart_method at 0x7fa157cd3320>
└ SmartPath('/data/Outputs/model_logs/cvpods_playground/detection/coco/fcos/fcos.res50.fpn.coco.800size.1x')
File "/home/weijinmeng/.local/lib/python3.7/site-packages/megfile/smart_path.py", line 14, in smart_method
return getattr(self.pathlike, name)(*args, **kwargs)
│ │ │ │ └ {'exist_ok': True}
│ │ │ └ ()
│ │ └ 'makedirs'
│ └ FSPath('/data/Outputs/model_logs/cvpods_playground/detection/coco/fcos/fcos.res50.fpn.coco.800size.1x')
└ SmartPath('/data/Outputs/model_logs/cvpods_playground/detection/coco/fcos/fcos.res50.fpn.coco.800size.1x')
File "/home/weijinmeng/.local/lib/python3.7/site-packages/megfile/pathlike.py", line 245, in makedirs
self.mkdir(exist_ok=exist_ok)
│ │ └ True
│ └ <function fs_makedirs at 0x7fa157c58710>
└ FSPath('/data/Outputs/model_logs/cvpods_playground/detection/coco/fcos/fcos.res50.fpn.coco.800size.1x')
File "/home/weijinmeng/.local/lib/python3.7/site-packages/megfile/fs_path.py", line 18, in fs_method
return getattr(fs, name)(self.path_without_protocol, *args, **kwargs)
│ │ │ │ │ └ {'exist_ok': True}
│ │ │ │ └ ()
│ │ │ └ '/data/Outputs/model_logs/cvpods_playground/detection/coco/fcos/fcos.res50.fpn.coco.800size.1x'
│ │ └ FSPath('/data/Outputs/model_logs/cvpods_playground/detection/coco/fcos/fcos.res50.fpn.coco.800size.1x')
│ └ 'fs_makedirs'
└ <module 'megfile.fs' from '/home/weijinmeng/.local/lib/python3.7/site-packages/megfile/fs.py'>
File "/home/weijinmeng/.local/lib/python3.7/site-packages/megfile/fs.py", line 228, in fs_makedirs
return os.makedirs(path, exist_ok=exist_ok)
│ │ │ └ True
│ │ └ '/data/Outputs/model_logs/cvpods_playground/detection/coco/fcos/fcos.res50.fpn.coco.800size.1x'
│ └ <function makedirs at 0x7fa2e7b76ef0>
└ <module 'os' from '/icislab/volume1/wjm/Anaconda/envs/open-mmlab/lib/python3.7/os.py'>
File "/icislab/volume1/wjm/Anaconda/envs/open-mmlab/lib/python3.7/os.py", line 213, in makedirs
makedirs(head, exist_ok=exist_ok)
│ │ └ True
│ └ '/data/Outputs/model_logs/cvpods_playground/detection/coco/fcos'
└ <function makedirs at 0x7fa2e7b76ef0>
File "/icislab/volume1/wjm/Anaconda/envs/open-mmlab/lib/python3.7/os.py", line 213, in makedirs
makedirs(head, exist_ok=exist_ok)
│ │ └ True
│ └ '/data/Outputs/model_logs/cvpods_playground/detection/coco'
└ <function makedirs at 0x7fa2e7b76ef0>
File "/icislab/volume1/wjm/Anaconda/envs/open-mmlab/lib/python3.7/os.py", line 213, in makedirs
makedirs(head, exist_ok=exist_ok)
│ │ └ True
│ └ '/data/Outputs/model_logs/cvpods_playground/detection'
└ <function makedirs at 0x7fa2e7b76ef0>
[Previous line repeated 4 more times]
File "/icislab/volume1/wjm/Anaconda/envs/open-mmlab/lib/python3.7/os.py", line 223, in makedirs
mkdir(name, mode)
│ │ └ 511
│ └ '/data'
└

PermissionError: [Errno 13] Permission denied: '/data'

Start at tools/train_net.py:82 and cvpods/engine/setup.py:131, where default_setup calls ensure_dir for the /data output path; inspect how that output path is selected. Reproduce the training command and verify that a writable output directory can be created without PermissionError.