文章目录
- 写在前面
- 一、问题描述
- 二、解决方法
- 参考链接
写在前面
自己的测试环境：
Ubuntu20.04
ROS-Noetic
一、问题描述
自己在通过 pip install 安装module时 （使用的是 pip install mmcv）遇到如下问题：
ImportError: cannot import name 'packaging' from 'pkg_resources'
出现该问题时的终端的全部输出如下：
Using cached mmcv-2.2.0.tar.gz (479 kB)Preparing metadata (setup.py) ... errorerror: subprocess-exited-with-error× python setup.py egg_info did not run successfully.│ exit code: 1╰─> [10 lines of output]/tmp/pip-install-qm5a01q8/mmcv_417ac91e439f41a1b12309217221d376/setup.py:5: DeprecationWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.htmlfrom pkg_resources import DistributionNotFound, get_distribution, parse_versionTraceback (most recent call last):File "<string>", line 2, in <module>File "<pip-setuptools-caller>", line 34, in <module>File "/tmp/pip-install-qm5a01q8/mmcv_417ac91e439f41a1b12309217221d376/setup.py", line 19, in <module>from torch.utils.cpp_extension import BuildExtensionFile "/home/wong/ProgramFiles/anaconda3/envs/pytorch_env/lib/python3.8/site-packages/torch/utils/cpp_extension.py", line 28, in <module>from pkg_resources import packaging # type: ignore[attr-defined]ImportError: cannot import name 'packaging' from 'pkg_resources' (/home/wong/ProgramFiles/anaconda3/envs/pytorch_env/lib/python3.8/site-packages/pkg_resources/__init__.py)[end of output]note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed× Encountered error while generating package metadata.
╰─> See above for output.note: This is an issue with the package mentioned above, not pip.
hint: See above for details.
报错截图如下：
二、解决方法
上述的报错信息表明：在安装 mmcv 时出现了 pkg_resources 模块的问题。具体来说，似乎是 packaging 模块无法从 pkg_resources 中导入。
解决方法如下：
-
安装
packaging模块：pip install packaging -
更新
setuptools和pip:pip install --upgrade setuptools pip
然后再次运行自己的安装程序，即可解决问题。（自己是重新运行 pip install mmcv, 就能安装成功了。）
参考链接
[1] sider. 2024-11-10.
