pip安装apex报错ERROR: Could not build wheels for cryptacular.......

问题：在训练模型的时候需要安装apex包，遂即使用以下命令

pip install apex
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但是报错了，报错信息如下：

WARNING: Building wheel for cryptacular failed: [Errno 2] No such file or directory: 'C:\\Users\\XXX\\AppData\\Local\\Temp\\pip-wheel-0dhfjrr3\\cryptacular-1.6.2-cp37-cp37m-win_amd64.whl'
Failed to build cryptacular
ERROR: Could not build wheels for cryptacular, which is required to install pyproject.toml-based projects
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包此类型的问题基本上是所下载包的所需资源未全部download，所以直接使用github将所需资源拉下来，在本地进行安装，遂即使用以下命令

git clone https://github.com/NVIDIA/apex.git
cd apex
git checkout f3a960f80244cf9e80558ab30f7f7e8cbf03c0a0
python setup.py install --cuda_ext --cpp_ext
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安装成功！！！