tensorflow/models · error · ValueError

Existing layer weight shape {} is incompatible withprovided

Error message

Existing layer weight shape {} is incompatible withprovided weight shape {}

What it means

Error "Existing layer weight shape {} is incompatible withprovided weight shape {}" thrown in tensorflow/models.

Source

Thrown at official/projects/qat/nlp/quantization/configs.py:342

  def get_weights_and_quantizers(self, layer):
    return [(getattr(layer, weight_attr), self.weight_quantizer)
            for weight_attr in self.weight_attrs]

  def get_activations_and_quantizers(self, layer):
    return [(getattr(layer, activation_attr), self.activation_quantizer)
            for activation_attr in self.activation_attrs]

  def set_quantize_weights(self, layer, quantize_weights):
    if len(self.weight_attrs) != len(quantize_weights):
      raise ValueError(
          '`set_quantize_weights` called on layer {} with {} '
          'weight parameters, but layer expects {} values.'.format(
              layer.name, len(quantize_weights), len(self.weight_attrs)))

    for weight_attr, weight in zip(self.weight_attrs, quantize_weights):
      current_weight = getattr(layer, weight_attr)
      if current_weight.shape != weight.shape:
        raise ValueError('Existing layer weight shape {} is incompatible with'
                         'provided weight shape {}'.format(
                             current_weight.shape, weight.shape))

      setattr(layer, weight_attr, weight)

  def set_quantize_activations(self, layer, quantize_activations):
    if len(self.activation_attrs) != len(quantize_activations):
      raise ValueError(
          '`set_quantize_activations` called on layer {} with {} '
          'activation parameters, but layer expects {} values.'.format(
              layer.name, len(quantize_activations),
              len(self.activation_attrs)))

    for activation_attr, activation in zip(
        self.activation_attrs, quantize_activations):
      setattr(layer, activation_attr, activation)

  def get_output_quantizers(self, layer):

View on GitHub (pinned to e006f5f0d5)

When it happens

Trigger: Thrown at official/projects/qat/nlp/quantization/configs.py:342 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of tensorflow/models@e006f5f0d5 (2026-08-24). Data as JSON: /api/errors/caedfbe881cfb1f5. Report an issue: GitHub.