C:\Users\YZX\AppData\Local\Programs\Python\Python38\lib\site-packages\torch\functional.py:504: UserW

在运行DCN时，出现了一个警告：\Python\Python38\lib\site-packages\torch\functional.py:504: UserWarning: torch.meshgrid: in an upcoming release, it will be required to pass the indexing argument. (Triggered internally at C:\actions-runner_work\pytorch\pytorch\builder\windows\pytorch\aten\src\ATen\native\TensorShape.cpp:3484.)
return _VF.meshgrid(tensors, **kwargs) # type: ignore[attr-defined]

解决方法如下：
按住ctrl点击错误中的链接，找到fuctional文件中的第504行，return _VF.meshgrid(tensors, **kwargs)

在其反括号前加上如下代码 indexing = 'ij‘

再运行，就不会有那个警告了。