Error in the demos with Google Colab

[antoineedy]

Some (all?) demos do not work anymore on Google Colab.

To reproduce: Open any demo in the demo folder, like this one.

Open in Google Colab and run the file. The third output cell is the following:

AssertionError                            Traceback (most recent call last)
<ipython-input-3-a857150f8e0e> in <cell line: 4>()
      2 from mmengine.utils.dl_utils import collect_env as collect_base_env
      3 
----> 4 import mmdet
      5 
      6 

/content/mmdetection/mmdet/__init__.py in <module>
     15 
     16 assert (mmcv_version >= digit_version(mmcv_minimum_version)
---> 17         and mmcv_version < digit_version(mmcv_maximum_version)), \
     18     f'MMCV=={mmcv.__version__} is used but incompatible. ' \
     19     f'Please install mmcv>={mmcv_minimum_version}, <{mmcv_maximum_version}.'

AssertionError: MMCV==2.2.0 is used but incompatible. Please install mmcv>=2.0.0rc4, <2.2.0.

This error does not match the !mim install "mmcv>=2.0.0rc4" of the cell above. I tried with changing the version of mmcv to one between 2.0.0rc4 & 2.2.0, but the same error keeps occurring.

[mahao18cm]

This is my problem also

[pf0418]

for colab, you may try to run !mim install mmdet to install mmdet straight away; for terminal, you may try mim install mmdet. Seems like it'll help to reinstall the suitable mmcv (2.1.0 for my case). This works for me

[mahao18cm]

Exactly! I also tried this way and subsequently successed. But what embarrassed me is the time of building wheel for this. I almost thought that i was wrong but the result is fine.Thank for you emails.

------------------ 原始邮件 ------------------ 发件人: "open-mmlab/mmdetection" @.>; 发送时间: 2024年6月4日(星期二) 下午3:27 @.>; @.@.>; 主题: Re: [open-mmlab/mmdetection] Error in the demos with Google Colab (Issue #11684)

for colab, you may try to run !mim install mmdet to install mmdet straight away; for terminal, you may try mim install mmdet. Seems like it'll help to reinstall the suitable mmcv (2.1.0 for my case). This works for me

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[abozanona]

You can also set the version directly for mmcv

!mim install "mmcv==2.0.0rc4"

[zivzone]

I found a weird solution, when doing following step, it's works !git clone https://github.com/open-mmlab/mmdetection.git !cd mmdetection && pip install -e .

here is a little bit weird things to do, goto mmdetection/mmdet/init.py, change mmcv_maximum_version = '2.2.0' to mmcv_maximum_version = '2.2.1' and run below again

!cd mmdetection && pip install -e .