Expected a default value of type Tensor on parameter "residual":

 

 

Expected a default value of type Tensor on parameter "residual":

 

错误代码：

    @torch.jit.script_method
    def forward(self, x, residual=None):
        if residual is None:
            residual = x

正确代码：

  @torch.jit.script_method
    def forward(self, x, residual=torch.IntTensor([0])):
        if residual !=0:
            residual = x