{"record":{"id":"9518d063d09958c8","repo":"tensorflow/models","slug":"unknown-decoder-type-9518d0","errorCode":null,"errorMessage":"Unknown decoder type: {}!","messagePattern":"Unknown decoder type: (.+?)!","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"official/projects/pix2seq/tasks/pix2seq_task.py","lineNumber":175,"sourceCode":"      self, params, input_context: Optional[tf.distribute.InputContext] = None\n  ):\n    \"\"\"Build input dataset.\"\"\"\n\n    if params.tfds_name:\n      decoder = tfds_factory.get_detection_decoder(params.tfds_name)\n    else:\n      decoder_cfg = params.decoder.get()\n      if params.decoder.type == 'simple_decoder':\n        decoder = tf_example_decoder.TfExampleDecoder(\n            regenerate_source_id=decoder_cfg.regenerate_source_id\n        )\n      elif params.decoder.type == 'label_map_decoder':\n        decoder = tf_example_label_map_decoder.TfExampleDecoderLabelMap(\n            label_map=decoder_cfg.label_map,\n            regenerate_source_id=decoder_cfg.regenerate_source_id,\n        )\n      else:\n        raise ValueError(\n            'Unknown decoder type: {}!'.format(params.decoder.type)\n        )\n\n    parser = pix2seq_input.Parser(\n        eos_token_weight=self._task_config.losses.eos_token_weight,\n        output_size=self._task_config.model.input_size[:2],\n        max_num_boxes=self._task_config.model.max_num_instances,\n        coord_vocab_shift=self._task_config.coord_vocab_shift,\n        quantization_bins=self._task_config.quantization_bins,\n        aug_scale_min=params.aug_scale_min,\n        aug_scale_max=params.aug_scale_max,\n        aug_color_jitter_strength=params.aug_color_jitter_strength,\n        label_shift=params.label_shift,\n    )\n\n    reader = input_reader_factory.input_reader_generator(\n        params,\n        dataset_fn=dataset_fn.pick_dataset_fn(params.file_type),","sourceCodeStart":157,"sourceCodeEnd":193,"githubUrl":"https://github.com/tensorflow/models/blob/e006f5f0d534913e49c1f1dae87364039fa607e2/official/projects/pix2seq/tasks/pix2seq_task.py#L157-L193","documentation":"Error \"Unknown decoder type: {}!\" thrown in tensorflow/models.","triggerScenarios":"Thrown at official/projects/pix2seq/tasks/pix2seq_task.py:175 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"}