ImportError: cannot import name 'revert_sync_batchnorm' from 'mmcv.cnn.utils'

[ReginaldBrennan]

Hello

I'm trying to do the training on a Colab notebook, the link is: this

On this notebook I am running the following commands:

!pip3 install -U openmim
!mim install mmengine
!mim install "mmcv>=2.0.0"
!mim install "mmpretrain>=1.0.0rc6"
!pip install "mmsegmentation>=1.0.0"
!pip install "mmdet>=3.0.0"

Followed by:

%cd /content/
!git clone https://github.com/likyoo/open-cd.git
%cd open-cd
!pip install -v -e .

Then:

!python tools/train.py configs/changer/changer_ex_r18_512x512_40k_levircd.py --work-dir ./changer_r18_levir_workdir --gpu-id 0 --seed 307

And get this error:

Traceback (most recent call last):
  File "/content/open-cd/tools/train.py", line 13, in <module>
    from mmcv.cnn.utils import revert_sync_batchnorm
ImportError: cannot import name 'revert_sync_batchnorm' from 'mmcv.cnn.utils' (/usr/local/lib/python3.9/dist-packages/mmcv/cnn/utils/__init__.py)

I read the documentation, open and closed issues of mmsegmentation and mmcv and i couldn't find anything related to this error.

Should I open an issue in the mmcv repository? Or could you guide me where to look for the solution?

From already thank you very much!

[likyoo]

please make sure the OpenCD verson you used. The dependencies you list is for v1.x version, but your command (and your code, I guess) is for v0.x.

[ReginaldBrennan]

You're right, I was getting confused with the versions! Thank you!!

[Wslnjupt]

You're right, I was getting confused with the versions! Thank you!!
Can you elaborate on how to solve it？please

[Wslnjupt]

please make sure the OpenCD verson you used. The dependencies you list is for v1.x version, but your command (and your code, I guess) is for v0.x.

Can you elaborate on how to solve it？please

[AgustinNormand]

please make sure the OpenCD verson you used. The dependencies you list is for v1.x version, but your command (and your code, I guess) is for v0.x.

Can you elaborate on how to solve it？please

Here you have a colab notebook to see an example.

[likyoo]

please make sure the OpenCD verson you used. The dependencies you list is for v1.x version, but your command (and your code, I guess) is for v0.x.

Can you elaborate on how to solve it？please

Here you have a colab notebook to see an example.

Great! Could you create a PR for this valuable notebook? Maybe you can add a link to it in the README's Usage part.