why raise AssertionError("Torch not compiled with CUDA enabled") AssertionError: Torch not compiled with CUDA enabled

[xuping2012]

Namespace(batch_size=32, clip=-1, cuda=True, dropout=0.0, epochs=10, ksize=7, levels=8, log_interval=100, lr=0.004, nhid=30, optim='Adam', seed=1111, seq_len=400)
Producing data...
Traceback (most recent call last):
File "D:\javaworkspace\TCN\TCN\adding_problem\add_test.py", line 63, in
model.cuda()
File "D:\anaconda3\envs\script\lib\site-packages\torch\nn\modules\module.py", line 688, in cuda
return self._apply(lambda t: t.cuda(device))
File "D:\anaconda3\envs\script\lib\site-packages\torch\nn\modules\module.py", line 578, in _apply
module._apply(fn)
File "D:\anaconda3\envs\script\lib\site-packages\torch\nn\modules\module.py", line 578, in _apply
module._apply(fn)
File "D:\anaconda3\envs\script\lib\site-packages\torch\nn\modules\module.py", line 578, in _apply
module._apply(fn)
[Previous line repeated 1 more time]
File "D:\anaconda3\envs\script\lib\site-packages\torch\nn\modules\module.py", line 601, in _apply
param_applied = fn(param)
File "D:\anaconda3\envs\script\lib\site-packages\torch\nn\modules\module.py", line 688, in
return self.apply(lambda t: t.cuda(device))
File "D:\anaconda3\envs\script\lib\site-packages\torch\cuda_init.py", line 210, in _lazy_init
raise AssertionError("Torch not compiled with CUDA enabled")
AssertionError: Torch not compiled with CUDA enabled