[Bug] MMCV==2.1.0 is used but incompatible. Please install mmcv>=2.0.0rc4, <2.1.0.

[pure-wei]

Prerequisite

• I have searched Issues and Discussions but cannot get the expected help.
• The bug has not been fixed in the latest version (0.x) or latest version (1.x).

Task

I'm using the official example scripts/configs for the officially supported tasks/models/datasets.

Branch

main branch https://github.com/open-mmlab/mmocr

Environment

python 3.11.5 pytorch 2.1.2 cuda 12.1

Reproduces the problem - code sample

!pip install -U openmim
!pip install opencv-python pillow matplotlib seaborn tqdm -i https://pypi.tuna.tsinghua.edu.cn/simple
!git clone https://github.com/open-mmlab/mmocr.git
!mim install -e .
import mmocr

print(dir(mmocr))
print(dir(mmcv))

AssertionError Traceback (most recent call last)
Cell In[7], line 2
1 # 检查 mmocr
----> 2 import mmocr
3 #print('mmocr版本', mmocr.version)
4 print(dir(mmocr))

File c:\Users\rhwto\Desktop\code\github\MMOCR_tutorials-main\20230620\mmocr\mmocr_init_.py:4
1 # Copyright (c) OpenMMLab. All rights reserved.
3 import mmcv
----> 4 import mmdet
6 try:
7 import mmengine

File c:\Users\rhwto\anaconda3\Lib\site-packages\mmdet_init_.py:17
13 mmengine_maximum_version = '1.0.0'
14 mmengine_version = digit_version(mmengine.version)
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}.'
21 assert (mmengine_version >= digit_version(mmengine_minimum_version)
22 and mmengine_version < digit_version(mmengine_maximum_version)),
23 f'MMEngine=={mmengine.version} is used but incompatible. '
24 f'Please install mmengine>={mmengine_minimum_version}, '
25 f'<{mmengine_maximum_version}.'
27 all = ['version', 'version_info', 'digit_version']

AssertionError: MMCV==2.1.0 is used but incompatible. Please install mmcv>=2.0.0rc4, <2.1.0.

Reproduces the problem - command or script

---

AssertionError Traceback (most recent call last)
Cell In[7], line 2
1 # 检查 mmocr
----> 2 import mmocr
3 #print('mmocr版本', mmocr.version)
4 print(dir(mmocr))

File c:\Users\rhwto\Desktop\code\github\MMOCR_tutorials-main\20230620\mmocr\mmocr_init_.py:4
1 # Copyright (c) OpenMMLab. All rights reserved.
3 import mmcv
----> 4 import mmdet
6 try:
7 import mmengine

File c:\Users\rhwto\anaconda3\Lib\site-packages\mmdet_init_.py:17
13 mmengine_maximum_version = '1.0.0'
14 mmengine_version = digit_version(mmengine.version)
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}.'
21 assert (mmengine_version >= digit_version(mmengine_minimum_version)
22 and mmengine_version < digit_version(mmengine_maximum_version)),
23 f'MMEngine=={mmengine.version} is used but incompatible. '
24 f'Please install mmengine>={mmengine_minimum_version}, '
25 f'<{mmengine_maximum_version}.'
27 all = ['version', 'version_info', 'digit_version']

AssertionError: MMCV==2.1.0 is used but incompatible. Please install mmcv>=2.0.0rc4, <2.1.0.

Reproduces the problem - error message

---

AssertionError Traceback (most recent call last)
Cell In[7], line 2
1 # 检查 mmocr
----> 2 import mmocr
3 #print('mmocr版本', mmocr.version)
4 print(dir(mmocr))

File c:\Users\rhwto\Desktop\code\github\MMOCR_tutorials-main\20230620\mmocr\mmocr_init_.py:4
1 # Copyright (c) OpenMMLab. All rights reserved.
3 import mmcv
----> 4 import mmdet
6 try:
7 import mmengine

File c:\Users\rhwto\anaconda3\Lib\site-packages\mmdet_init_.py:17
13 mmengine_maximum_version = '1.0.0'
14 mmengine_version = digit_version(mmengine.version)
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}.'
21 assert (mmengine_version >= digit_version(mmengine_minimum_version)
22 and mmengine_version < digit_version(mmengine_maximum_version)),
23 f'MMEngine=={mmengine.version} is used but incompatible. '
24 f'Please install mmengine>={mmengine_minimum_version}, '
25 f'<{mmengine_maximum_version}.'
27 all = ['version', 'version_info', 'digit_version']

AssertionError: MMCV==2.1.0 is used but incompatible. Please install mmcv>=2.0.0rc4, <2.1.0.

Additional information

please fix the error with cuda file,and i can't find the preciously compatible version that works

[yechaoying]

I uninstalled mmcv==2.1.0 and installed mmcv==2.0.0 as the AssertionError said. But after "import mmselfsup", there are"UserWarning: Cannot import torch.fx, merge_dict is a simple function to merge multiple dicts".

[d9j]

this project appears to be not maintained well.. it requires deprecated python 3.8 which been dropped even by anaconda.

[DeShinHwa]

Hi, did u solve it ?

[zhouzaida]

Hi, you could try to uninstall mmcv and install mmcv==2.0.0 via mim install mmcv==2.0.0.

[MiXaiLL76]

MiXaiLL76@922bc32

Do something like this

@zhouzaida
When will there be an update with the latest dependencies?
Maybe it's worth going with the correct format and specifying dependencies in the installation files?

But it turns out that they are right in init.py, which doesn’t look very good

[Yoanes-Yeo]

I've tried everything that i can, I still having the issue same like this... ' ERROR: Failed building wheel for mmcv
Running setup.py clean for mmcv
Failed to build mmcv
ERROR: Could not build wheels for mmcv, which is required to install pyproject.toml-based projects'

[DeShinHwa]

I've tried everything that i can, I still having the issue same like this... ' ERROR: Failed building wheel for mmcv Running setup.py clean for mmcv Failed to build mmcv ERROR: Could not build wheels for mmcv, which is required to install pyproject.toml-based projects'

If your pytorch version is 2.1.0, cuda 12.1. U can use this code below to install the specify version of the mmcv. It works for me.
pip install mmcv==2.1.0 -f https://download.openmmlab.com/mmcv/dist/cu121/torch2.1/index.html

[MiXaiLL76]

fixed with #2023

install from git

[drzraf]

see also #2041