{"record":{"id":"9b45ce71e91145a5","repo":"tensorflow/models","slug":"is-not-a-valid-mode","errorCode":null,"errorMessage":"{} is not a valid mode.","messagePattern":"(.+?) is not a valid mode\\.","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"official/legacy/image_classification/classifier_trainer.py","lineNumber":440,"sourceCode":"\ndef run(flags_obj: flags.FlagValues,\n        strategy_override: tf.distribute.Strategy = None) -> Mapping[str, Any]:\n  \"\"\"Runs Image Classification model using native Keras APIs.\n\n  Args:\n    flags_obj: An object containing parsed flag values.\n    strategy_override: A `tf.distribute.Strategy` object to use for model.\n\n  Returns:\n    Dictionary of training/eval stats\n  \"\"\"\n  params = _get_params_from_flags(flags_obj)\n  if params.mode == 'train_and_eval':\n    return train_and_eval(params, strategy_override)\n  elif params.mode == 'export_only':\n    export(params)\n  else:\n    raise ValueError('{} is not a valid mode.'.format(params.mode))\n\n\ndef main(_):\n  stats = run(flags.FLAGS)\n  if stats:\n    logging.info('Run stats:\\n%s', stats)\n\n\nif __name__ == '__main__':\n  logging.set_verbosity(logging.INFO)\n  define_classifier_flags()\n  flags.mark_flag_as_required('data_dir')\n  flags.mark_flag_as_required('mode')\n  flags.mark_flag_as_required('model_type')\n  flags.mark_flag_as_required('dataset')\n\n  app.run(main)\n","sourceCodeStart":422,"sourceCodeEnd":458,"githubUrl":"https://github.com/tensorflow/models/blob/e006f5f0d534913e49c1f1dae87364039fa607e2/official/legacy/image_classification/classifier_trainer.py#L422-L458","documentation":"Error \"{} is not a valid mode.\" thrown in tensorflow/models.","triggerScenarios":"Thrown at official/legacy/image_classification/classifier_trainer.py:440 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"}