问题1. AssertionError: MMCV==2.2.0 is used but incompatible. Please install mmcv>=2.0.0rc4.

(openmmlab) root@autodl-container-92154ba0e6-51e9a975:~/mmsegmentation# python demo/image_demo.py demo/demo.png configs/pspnet/pspnet_r50-d8_4xb2-40k_cityscapes-512x1024.py pspnet_r50-d8_512x1024_40k_cityscapes_20200605_003338-2966598c.pth --device cuda:0 --out-file result.jpg
Traceback (most recent call last):File "demo/image_demo.py", line 6, in <module>from mmseg.apis import inference_model, init_model, show_result_pyplotFile "/root/mmsegmentation/mmseg/__init__.py", line 61, in <module>assert (mmcv_min_version <= mmcv_version < mmcv_max_version), \
AssertionError: MMCV==2.2.0 is used but incompatible. Please install mmcv>=2.0.0rc4.

原因，MMCV版本不匹配
解决办法：

mim install mmcv==2.0.0rc4

问题2. ModuleNotFoundError: No module named ‘ftfy’

pip install ftfy

问题3. ModuleNotFoundError: No module named ‘regex’

pip install regex