【问题标题】:How to fix "ERROR: Failed building wheel for pytorch3d" error on Colab?如何修复 Colab 上的“错误:pytorch3d 构建轮子失败”错误?
【发布时间】:2021-03-30 21:31:53
【问题描述】:

我正在尝试使用一个非常酷的机器学习 Colab。 https://colab.research.google.com/drive/1eQLZrNYRZMo9zdnGGccE0hFswGiinO-Z?usp=sharing照原样运行,我不断收到ERROR: Failed building wheel for pytorch3d

经过大量谷歌搜索后,我尝试将 install 行替换为

!pip install 'git+https://github.com/facebookresearch/pytorch3d.git@stable'

还有

!pip install pytorch3d

前者不起作用。后者引发了另一个问题:

"ImportError: /usr/local/lib/python3.6/dist-packages/pytorch3d/_C.cpython-36m-x86_64-linux-gnu.so: undefined symbol: _ZNK2at6Tensor7is_cudaEv"

我也尝试过 !pip install torch==1.6.0 导致

Traceback (most recent call last):
  File "./meshrcnn/demo/demo.py", line 11, in <module>
    from detectron2.data import MetadataCatalog
  File "/usr/local/lib/python3.6/dist-packages/detectron2/data/__init__.py", line 4, in <module>
    from .build import (
  File "/usr/local/lib/python3.6/dist-packages/detectron2/data/build.py", line 14, in <module>
    from detectron2.structures import BoxMode
  File "/usr/local/lib/python3.6/dist-packages/detectron2/structures/__init__.py", line 6, in <module>
    from .keypoints import Keypoints, heatmaps_to_keypoints
  File "/usr/local/lib/python3.6/dist-packages/detectron2/structures/keypoints.py", line 6, in <module>
    from detectron2.layers import interpolate
  File "/usr/local/lib/python3.6/dist-packages/detectron2/layers/__init__.py", line 3, in <module>
    from .deform_conv import DeformConv, ModulatedDeformConv
  File "/usr/local/lib/python3.6/dist-packages/detectron2/layers/deform_conv.py", line 10, in <module>
    from detectron2 import _C
ImportError: /usr/local/lib/python3.6/dist-packages/detectron2/_C.cpython-36m-x86_64-linux-gnu.so: undefined symbol: _ZN6caffe28TypeMeta21_typeMetaDataInstanceISt7complexIdEEEPKNS_6detail12TypeMetaDataEv

已完成!pip install mmcv-full===1.2.1 -f https://download.openmmlab.com/mmcv/dist/cu101/torch1.7.0/index.html 尝试修复该问题,但错误仍然存​​在。

有人对如何使 Colab 环境正常工作有想法吗?

【问题讨论】:

    标签: python pytorch google-colaboratory torch pytorch3d


    【解决方案1】:

    我遇到了同样的错误并找到了您的帖子。我试图安装当前的主人(用:

    !pip install 'git+https://github.com/facebookresearch/pytorch3d.git'
    

    在下载和编译 pytorch3D==0.4.0 之后,它实际上工作正常。 我认为解决问题的方法是下载和编译 pytorch3d,以便它与 cuda 正确链接:如果它下载预编译的轮子,您可能会收到未定义的符号错误。

    我所做的唯一其他更改:我必须在边界矩形计算单元中从对 group_keypoints() 的调用中删除 demo=True(它说参数未知)

    【讨论】:

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