{"record":{"id":"afd0c4a484b497fc","repo":"tensorflow/models","slug":"unknown-weight-method-s","errorCode":null,"errorMessage":"unknown weight_method %s","messagePattern":"unknown weight_method (.+?)","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"official/projects/edgetpu/vision/modeling/heads/bifpn_head.py","lineNumber":403,"sourceCode":"    elif self.weight_method == 'channel_attn':\n      edge_weights = [tf.cast(var, dtype=dtype) for var in self.vars]\n      normalized_weights = tf.nn.softmax(tf.stack(edge_weights, -1), axis=-1)\n      nodes = tf.stack(nodes, axis=-1)\n      new_node = tf.reduce_sum(nodes * normalized_weights, -1)\n    elif self.weight_method == 'channel_fastattn':\n      edge_weights = [\n          tf.nn.relu(tf.cast(var, dtype=dtype)) for var in self.vars\n      ]\n      weights_sum = add_n(edge_weights)\n      nodes = [\n          nodes[i] * edge_weights[i] / (weights_sum + 0.0001)\n          for i in range(len(nodes))\n      ]\n      new_node = add_n(nodes)\n    elif self.weight_method == 'sum':\n      new_node = add_n(nodes)\n    else:\n      raise ValueError('unknown weight_method %s' % self.weight_method)\n\n    return new_node\n\n  def _add_wsm(self, initializer, shape=None):\n    for i, _ in enumerate(self.inputs_offsets):\n      name = 'WSM' + ('' if i == 0 else '_' + str(i))\n      self.vars.append(\n          self.add_weight(initializer=initializer, name=name, shape=shape))\n\n  def build(self, feats_shape):\n    for i, input_offset in enumerate(self.inputs_offsets):\n      name = 'resample_{}_{}_{}'.format(i, input_offset, len(feats_shape))\n      self.resample_layers.append(\n          ResampleFeatureMap(\n              self.feat_level,\n              self.fpn_num_filters,\n              self.apply_bn_for_resampling,\n              self.is_training_bn,","sourceCodeStart":385,"sourceCodeEnd":421,"githubUrl":"https://github.com/tensorflow/models/blob/e006f5f0d534913e49c1f1dae87364039fa607e2/official/projects/edgetpu/vision/modeling/heads/bifpn_head.py#L385-L421","documentation":"Error \"unknown weight_method %s\" thrown in tensorflow/models.","triggerScenarios":"Thrown at official/projects/edgetpu/vision/modeling/heads/bifpn_head.py:403 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"e006f5f0d534913e49c1f1dae87364039fa607e2","analyzedAt":"2026-08-24T14:09:15.576Z","schemaVersion":2},"datasetVersion":"2026-08-24T17:17:21.512Z"}