{"record":{"id":"ff7738c6e4a770d8","repo":"tensorflow/models","slug":"unsupported-optimizer-type","errorCode":null,"errorMessage":"Unsupported optimizer type `{}`.","messagePattern":"Unsupported optimizer type `(.+?)`\\.","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"official/legacy/detection/modeling/optimizers.py","lineNumber":46,"sourceCode":"\n  def __init__(self, params):\n    \"\"\"Creates optimized based on the specified flags.\"\"\"\n    if params.type == 'momentum':\n      self._optimizer = functools.partial(\n          tf_keras.optimizers.SGD,\n          momentum=params.momentum,\n          nesterov=params.nesterov)\n    elif params.type == 'adam':\n      self._optimizer = tf_keras.optimizers.Adam\n    elif params.type == 'adadelta':\n      self._optimizer = tf_keras.optimizers.Adadelta\n    elif params.type == 'adagrad':\n      self._optimizer = tf_keras.optimizers.Adagrad\n    elif params.type == 'rmsprop':\n      self._optimizer = functools.partial(\n          tf_keras.optimizers.RMSprop, momentum=params.momentum)\n    else:\n      raise ValueError('Unsupported optimizer type `{}`.'.format(params.type))\n\n  def __call__(self, learning_rate):\n    return self._optimizer(learning_rate=learning_rate)\n","sourceCodeStart":28,"sourceCodeEnd":50,"githubUrl":"https://github.com/tensorflow/models/blob/e006f5f0d534913e49c1f1dae87364039fa607e2/official/legacy/detection/modeling/optimizers.py#L28-L50","documentation":"Error \"Unsupported optimizer type `{}`.\" thrown in tensorflow/models.","triggerScenarios":"Thrown at official/legacy/detection/modeling/optimizers.py:46 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"}