RuntimeError: cuda runtime error (8) : invalid device function at /pytorch/aten/src/THC/THCGeneral.c

今天犯了一个很低级的错误。
打开服务器使用python命令训练网络报错：

Traceback (most recent call last):
  File "Train.py", line 166, in <module>
    result = G(input)
  File "/home/cat/anaconda3/lib/python3.7/site-packages/torch/nn/modules/module.py", line 493, in __call__
    result = self.forward(*input, **kwargs)
  File "/data1/cat/lab/network/Model.py", line 327, in forward
    x_down1 = self.down1(input)  # [bs, 64, 256, 256]
  File "/home/cat/anaconda3/lib/python3.7/site-packages/torch/nn/modules/module.py", line 493, in __call__
    result = self.forward(*input, **kwargs)
  File "/home/cat/anaconda3/lib/python3.7/site-packages/torch/nn/modules/container.py", line 92, in forward
    input = module(input)
  File "/home/cat/anaconda3/lib/python3.7/site-packages/torch/nn/modules/module.py", line 493, in __call__
    result = self.forward(*input, **kwargs)
  File "/home/cat/anaconda3/lib/python3.7/site-packages/torch/nn/modules/conv.py", line 338, in forward
    self.padding, self.dilation, self.groups)
RuntimeError: cuda runtime error (8) : invalid device function at /pytorch/aten/src/THC/THCGeneral.cpp:383

找了半天还以为是代码的问题，然后我突然发现我没启动虚拟环境。
故使用如下命令启动虚拟环境：

conda activate your_environment_name