Yolov5测试问题

[IsYang68]

Traceback (most recent call last):
File "val.py", line 26, in
from models.common import DetectMultiBackend
File "/Users/yangpeng/Desktop/yolov5-main/models/common.py", line 22, in
from utils.datasets import exif_transpose, letterbox
File "/Users/yangpeng/Desktop/yolov5-main/utils/datasets.py", line 28, in
from utils.augmentations import Albumentations, augment_hsv, copy_paste, letterbox, mixup, random_perspective
File "/Users/yangpeng/Desktop/yolov5-main/utils/augmentations.py", line 12, in
from utils.general import LOGGER, check_version, colorstr, resample_segments, segment2box
File "/Users/yangpeng/Desktop/yolov5-main/utils/general.py", line 31, in
from mmcv.ops import soft_nms, nms
File "/Users/yangpeng/mmcv/mmcv/ops/init.py", line 2, in
from .active_rotated_filter import active_rotated_filter
File "/Users/yangpeng/mmcv/mmcv/ops/active_rotated_filter.py", line 8, in
ext_module = ext_loader.load_ext(
File "/Users/yangpeng/mmcv/mmcv/utils/ext_loader.py", line 13, in load_ext
ext = importlib.import_module('mmcv.' + name)
File "/opt/anaconda3/envs/yp_env/lib/python3.8/importlib/init.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
ImportError: dlopen(/Users/yangpeng/mmcv/mmcv/_ext.cpython-38-darwin.so, 0x0002): symbol not found in flat namespace '__Z3nmsN2at6TensorES0_fi'

[shenyi0220]

这个MMCV编译正确了吗？

[IsYang68]

这个MMCV编译正确了吗？
运行好了，但是再运行报错：
ImportError: dlopen(/Users/yangpeng/mmcv/mmcv/_ext.cpython-38-darwin.so, 0x0002): symbol not found in flat namespace '__Z3nmsN2at6TensorES0_fi'

[shenyi0220]

hmm，这个感觉是Cython没装对~~~
不是100%确定，可能还有其他issue，毕竟我不是环境安装专家哎

[IsYang68]

hmm，这个感觉是Cython没装对~~~ 不是100%确定，可能还有其他issue，毕竟我不是环境安装专家哎

嗯嗯，十分感谢您的回复

[mastergao57]

一样的问题，求帮助

[shenyi0220]

看一下Cython版本？不带CP的MMCV能正确编译吗？

[mastergao57]

不是编译问题，编译都是通过了的。是导入时的问题，from mmcv.ops import soft_nms。然后运行程序就报错undefined symbol: _Z3nmsN2at6TensorES0_fi
我试了别的版本的mmcv，不带cp，正常用soft_nms，没问题。只要一改，就导入报错。

会不会是方法名不对应的问题，比如soft_nms与softnms，我不太懂编译的原理。