{"record":{"id":"ae7f64684492bb42","repo":"tensorflow/models","slug":"currently-there-is-no-support-for-more-than-text-f","errorCode":null,"errorMessage":"Currently there is no support for more than text field while generating next sentence labels.","messagePattern":"Currently there is no support for more than text field while generating next sentence labels\\.","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"official/nlp/data/pretrain_text_dataloader.py","lineNumber":70,"sourceCode":"_SEP_TOKEN = b\"[SEP]\"\n_MASK_TOKEN = b\"[MASK]\"\n_NUM_OOV_BUCKETS = 1\n# Accounts for [CLS] and 2 x [SEP] tokens\n_NUM_SPECIAL_TOKENS = 3\n\n\n@data_loader_factory.register_data_loader_cls(BertPretrainTextDataConfig)\nclass BertPretrainTextDataLoader(data_loader.DataLoader):\n  \"\"\"A class to load text dataset for BERT pretraining task.\"\"\"\n\n  def __init__(self, params):\n    \"\"\"Inits `BertPretrainTextDataLoader` class.\n\n    Args:\n      params: A `BertPretrainTextDataConfig` object.\n    \"\"\"\n    if len(params.text_field_names) > 1 and params.use_next_sentence_label:\n      raise ValueError(\"Currently there is no support for more than text field \"\n                       \"while generating next sentence labels.\")\n\n    self._params = params\n    self._seq_length = params.seq_length\n    self._max_predictions_per_seq = params.max_predictions_per_seq\n    self._use_next_sentence_label = params.use_next_sentence_label\n    self._masking_rate = params.masking_rate\n    self._use_whole_word_masking = params.use_whole_word_masking\n\n    lookup_table_init = tf.lookup.TextFileInitializer(\n        params.vocab_file_path,\n        key_dtype=tf.string,\n        key_index=tf.lookup.TextFileIndex.WHOLE_LINE,\n        value_dtype=tf.int64,\n        value_index=tf.lookup.TextFileIndex.LINE_NUMBER)\n    self._vocab_lookup_table = tf.lookup.StaticVocabularyTable(\n        lookup_table_init,\n        num_oov_buckets=_NUM_OOV_BUCKETS,","sourceCodeStart":52,"sourceCodeEnd":88,"githubUrl":"https://github.com/tensorflow/models/blob/e006f5f0d534913e49c1f1dae87364039fa607e2/official/nlp/data/pretrain_text_dataloader.py#L52-L88","documentation":"Error \"Currently there is no support for more than text field while generating next sentence labels.\" thrown in tensorflow/models.","triggerScenarios":"Thrown at official/nlp/data/pretrain_text_dataloader.py:70 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"}