{"record":{"id":"e8e5ec608454b5f3","repo":"tensorflow/models","slug":"unsupported-optimizer-type-e8e5ec","errorCode":null,"errorMessage":"Unsupported optimizer type: ","messagePattern":"Unsupported optimizer type: ","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"official/nlp/optimization.py","lineNumber":111,"sourceCode":"    optimizer = AdamWeightDecay(\n        learning_rate=lr_schedule,\n        weight_decay_rate=0.01,\n        beta_1=beta_1,\n        beta_2=0.999,\n        epsilon=1e-6,\n        exclude_from_weight_decay=['LayerNorm', 'layer_norm', 'bias'])\n  elif optimizer_type == 'lamb':\n    logging.info('using Lamb optimizer')\n    optimizer = LAMB(\n        learning_rate=lr_schedule,\n        weight_decay_rate=0.01,\n        beta_1=beta_1,\n        beta_2=0.999,\n        epsilon=1e-6,\n        exclude_from_weight_decay=['LayerNorm', 'layer_norm', 'bias'],\n    )\n  else:\n    raise ValueError('Unsupported optimizer type: ', optimizer_type)\n\n  return optimizer\n","sourceCodeStart":93,"sourceCodeEnd":114,"githubUrl":"https://github.com/tensorflow/models/blob/e006f5f0d534913e49c1f1dae87364039fa607e2/official/nlp/optimization.py#L93-L114","documentation":"Error \"Unsupported optimizer type: \" thrown in tensorflow/models.","triggerScenarios":"Thrown at official/nlp/optimization.py:111 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"}