sam2 training.py :omegaconf.errors.ConfigAttributeError: Key 'launcher' is not in struct

[darkstar1227]

I am trying to fine-tune the sam2 with my own custom data, but there is an issue I have met.

• My system information:

GPU: A100 80G
pytorch:2.3.1(it will have a strange error, when pytorch >= 2.4, . I might open another issue.)
setup code: SAM2_BUILD_ALLOW_ERRORS=0 pip install --no-cache-dir -v -e ".[dev]"

• Here is my dataset config:

dataset:
  # PATHS to Dataset
  img_folder: ./dataset/train/images # PATH to MOSE JPEGImages folder
  gt_folder: ./dataset/train/instances # PATH to MOSE Annotations folder
  file_list_txt: null # Optional PATH to filelist containing a subset of videos to be used for training

• The error message:

Traceback (most recent call last):
  File "/sam2/training/train.py", line 271, in <module>
    main(args)
  File "/sam2/training/train.py", line 125, in main
    print(cfg.launcher.experiment_log_dir)
  File "/opt/conda/lib/python3.10/site-packages/omegaconf/dictconfig.py", line 359, in __getattr__
    self._format_and_raise(key=key, value=None, cause=e)
  File "/opt/conda/lib/python3.10/site-packages/omegaconf/base.py", line 231, in _format_and_raise
    format_and_raise(
  File "/opt/conda/lib/python3.10/site-packages/omegaconf/_utils.py", line 819, in format_and_raise
    _raise(ex, cause)
  File "/opt/conda/lib/python3.10/site-packages/omegaconf/_utils.py", line 797, in _raise
    raise ex.with_traceback(sys.exc_info()[2])  # set env var OC_CAUSE=1 for full trace
  File "/opt/conda/lib/python3.10/site-packages/omegaconf/dictconfig.py", line 351, in __getattr__
    return self._get_impl(
  File "/opt/conda/lib/python3.10/site-packages/omegaconf/dictconfig.py", line 442, in _get_impl
    node = self._get_child(
  File "/opt/conda/lib/python3.10/site-packages/omegaconf/basecontainer.py", line 73, in _get_child
    child = self._get_node(
  File "/opt/conda/lib/python3.10/site-packages/omegaconf/dictconfig.py", line 475, in _get_node
    self._validate_get(key)
  File "/opt/conda/lib/python3.10/site-packages/omegaconf/dictconfig.py", line 164, in _validate_get
    self._format_and_raise(
  File "/opt/conda/lib/python3.10/site-packages/omegaconf/base.py", line 231, in _format_and_raise
    format_and_raise(
  File "/opt/conda/lib/python3.10/site-packages/omegaconf/_utils.py", line 899, in format_and_raise
    _raise(ex, cause)
  File "/opt/conda/lib/python3.10/site-packages/omegaconf/_utils.py", line 797, in _raise
    raise ex.with_traceback(sys.exc_info()[2])  # set env var OC_CAUSE=1 for full trace
omegaconf.errors.ConfigAttributeError: Key 'launcher' is not in struct
    full_key: launcher
    object_type=dict
    ```