title: TypeError: forward() takes 1 positional argument but 2 were given
body: <pre class="lang-py prettyprint-override"><code>class DeConv2d(nn.Module):
      def __init__(self, in_channel, out_channel, kernel_size, stride, padding, dilation):
          super().__init__()
  
          self.up = nn.Upsample(scale_factor=2, mode='nearest')
          self.conv = nn.Conv2d(in_channel, out_channel, kernel_size=kernel_size, \
                                stride=stride, padding=padding, dilation=dilation)
  
  
      def forward(self, x):
  
          output = self.up(x)
          output = self.conv(output)
  
          return output
  
  class EncoderDecoder(nn.Module):
      def __init__(self, pretrained_net, n_class):
          super().__init__()
          self.n_class = n_class
          self.pretrained_net = pretrained_net
          self.relu = nn.ReLU(inplace=True)
  
          self.deconv1 = DeConv2d(512, 512, kernel_size=3, stride=1, padding=1, dilation=1)
          self.bn1 = nn.BatchNorm2d(512)
  
          self.deconv2 = DeConv2d(512, 256, kernel_size=3, stride=1, padding=1, dilation=1)
          self.bn2 = nn.BatchNorm2d(256)
  
          self.deconv3 = DeConv2d(256, 128, kernel_size=3, stride=1, padding=1, dilation=1)
          self.bn3 = nn.BatchNorm2d(128)
  
          self.deconv4 = DeConv2d(128, 64, kernel_size=3, stride=1, padding=1, dilation=1)
          self.bn4 = nn.BatchNorm2d(64)
  
          self.classifier = nn.Conv2d(64, n_class, kernel_size=1)
  
      def forward(self, x):
  
          output=self.pretrained_net.layers(x)
  
  
          output=self.relu(self.deconv1(output))
          output=self.bn1(output)
  
  
          output=self.relu(self.deconv2(output))
          output=self.bn2(output)
  
  
          output=self.relu(self.deconv3(output))
          output=self.bn3(output)
  
  
          output=self.relu(self.deconv4(output))
          output=self.bn4(output)
  
  
          output=self.classifier(output)
  
  
  
          return output
  </code></pre>
  
  <p>this is my code and I don't know why the type error exist . Does somebody know how to fix these problems? </p>