Help with error: Cannot locate class or function path: ‘AddChanneld’.

[ebaldelomar]

Hi,

I've been getting an error:

raise ModuleNotFoundError(f"Cannot locate class or function path: ‘{__path}’.")
ModuleNotFoundError: Cannot locate class or function path: ‘AddChanneld’.

I'm trying to get MONAILabel up and running. I got all things installed, downloaded the test data set, and started the server. I’m trying to test out the case 2 example in the Quickstart documentation (Quickstart — MONAI Label 0.8.5 Documentation).

I have searched both the monai/ and monailabel/ folders for 'AddChanneld'

grep --include=*.{py} -rnw '/bmr207/nmrgrp/nmr141/.local/lib/python3.8/site-packages/' -e "AddChanneld"

Output:

/bmr207/nmrgrp/nmr141/.local/lib/python3.8/site-packages/monailabel/tasks/infer/basic_infer.py:171: monai.transforms.AddChanneld(keys='image'),
/bmr207/nmrgrp/nmr141/.local/lib/python3.8/site-packages/monailabel/tasks/infer/basic_infer.py:211: monai.transforms.AddChanneld(keys='pred'),
/bmr207/nmrgrp/nmr141/.local/lib/python3.8/site-packages/tests/unit/deepedit/test_deepedit_transforms.py:16:from monai.transforms import AddChanneld
/bmr207/nmrgrp/nmr141/.local/lib/python3.8/site-packages/tests/unit/deepedit/test_deepedit_transforms.py:184: add_ch = AddChanneld(keys=["image", "label"])(input_data)
/bmr207/nmrgrp/nmr141/.local/lib/python3.8/site-packages/tests/unit/deepedit/test_deepedit_transforms.py:193: add_ch = AddChanneld(keys=["image", "label"])(input_data)
/bmr207/nmrgrp/nmr141/.local/lib/python3.8/site-packages/tests/unit/deepedit/test_deepedit_transforms.py:202: add_ch = AddChanneld(keys=["image", "label"])(input_data)
/bmr207/nmrgrp/nmr141/.local/lib/python3.8/site-packages/tests/unit/deepedit/test_deepedit_transforms.py:211: add_ch = AddChanneld(keys=["image", "label"])(input_data)
/bmr207/nmrgrp/nmr141/.local/lib/python3.8/site-packages/tests/unit/activelearning/test_epistemic.py:24: AddChanneld,
/bmr207/nmrgrp/nmr141/.local/lib/python3.8/site-packages/tests/unit/activelearning/test_epistemic.py:73: AddChanneld(keys),
/bmr207/nmrgrp/nmr141/.local/lib/python3.8/site-packages/monai/transforms/transform.py:443: except for example: AddChanneld expects (spatial_dim_1[, spatial_dim_2, ...])

The only two files that actually use 'AddChanneld' (not commented out) are:

• tests/unit/activelearning/test_epistemic.py:73
• tests/unit/deepedit/test_deepedit_transforms.py

I found this thread (#1686) that talked about this AddChannel issue before but it's not clear to me how one goes about properly editing it; and if it's still the appropriate issue.

When checking version of things using:

python -c "import monai; monai.config.print_config()"

I get the following output if helpful:

MONAI version: 1.3.2
Numpy version: 1.23.4
Pytorch version: 2.4.1+cu121
MONAI flags: HAS_EXT = False, USE_COMPILED = False, USE_META_DICT = False
MONAI rev id: 59a7211070538586369afd4a01eca0a7fe2e742e
MONAI file: /bmr207/nmrgrp//.local/lib/python3.8/site-packages/monai/init.py

Optional dependencies:
Pytorch Ignite version: 0.4.11
ITK version: 5.4.3
Nibabel version: 4.0.2
scikit-image version: 0.21.0
scipy version: 1.10.1
Pillow version: 9.3.0
Tensorboard version: 2.14.0
gdown version: 5.2.0
TorchVision version: 0.19.1+cu121
tqdm version: 4.64.1
lmdb version: 1.6.2
psutil version: 7.0.0
pandas version: 1.5.1
einops version: 0.7.0
transformers version: NOT INSTALLED or UNKNOWN VERSION.
mlflow version: 2.17.2
pynrrd version: 1.0.0
clearml version: NOT INSTALLED or UNKNOWN VERSION.

(A separate question I had was that, even though I just installed this week, I thought the most stable release would be version 1.4? I'm using the 'pip install monai')

[ericspod]

Hi @ebaldelomar AddChanneld has been removed from MONAI. If you still need it for MONAILabel which hasn't been updated you unfortunately will need to use an older version of MONAI. For the pip issue, the current stable version is 1.4 but your install may not pick that one if you have other package conflicts.