RuntimeError                              Traceback (most recent call last)
<ipython-input-22-57fdb3c2d0b9> in <module>()
     15     optimizer.zero_grad()
     16 
---> 17     out = cnnt(T, C)
     18 #     print(out)
     19 #     print(torch.LongTensor(cla[epoch]))

/usr/local/lib/python3.5/site-packages/torch/nn/modules/module.py in __call__(self, *input, **kwargs)
    204 
    205     def __call__(self, *input, **kwargs):
--> 206         result = self.forward(*input, **kwargs)
    207         for hook in self._forward_hooks.values():
    208             hook_result = hook(self, input, result)

<ipython-input-21-a8697656e2d4> in forward(self, title, content)
     92 #         print(conv_out.size())
     93 #         conv_out = torch.cat((content_out_3,content_out_4,content_out_5),dim=1)
---> 94         logits = self.fc(conv_out)
     95 #         print(logits)
     96 #         print(F.softmax(logits.squeeze(0)))

/usr/local/lib/python3.5/site-packages/torch/nn/modules/module.py in __call__(self, *input, **kwargs)
    204 
    205     def __call__(self, *input, **kwargs):
--> 206         result = self.forward(*input, **kwargs)
    207         for hook in self._forward_hooks.values():
    208             hook_result = hook(self, input, result)

/usr/local/lib/python3.5/site-packages/torch/nn/modules/linear.py in forward(self, input)
     52             return self._backend.Linear()(input, self.weight)
     53         else:
---> 54             return self._backend.Linear()(input, self.weight, self.bias)
     55 
     56     def __repr__(self):

/usr/local/lib/python3.5/site-packages/torch/nn/_functions/linear.py in forward(self, input, weight, bias)
      8         self.save_for_backward(input, weight, bias)
      9         output = input.new(input.size(0), weight.size(0))
---> 10         output.addmm_(0, 1, input, weight.t())
     11         if bias is not None:
     12             # cuBLAS doesn't support 0 strides in sger, so we can't use expand

RuntimeError: matrix and matrix expected at /b/wheel/pytorch-src/torch/lib/THC/generic/THCTensorMathBlas.cu:237

What is the meaning of this RuntimeError?I can not understand