{"record":{"id":"25e03299ac2c0093","repo":"tensorflow/models","slug":"use-causal-mask-is-not-supported","errorCode":null,"errorMessage":"use_causal_mask is not supported.","messagePattern":"use_causal_mask is not supported\\.","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"official/nlp/modeling/layers/block_sparse_attention.py","lineNumber":350,"sourceCode":"        -1,\n        self._num_heads,\n        self._query_shape[1],\n        self._value_dim,\n    ])\n    return attention_output, attention_scores\n\n  def call(\n      self,\n      query,\n      value,\n      key=None,\n      attention_mask=None,\n      return_attention_scores=False,\n      training=None,\n      use_causal_mask=False,\n  ):\n    if use_causal_mask:\n      raise ValueError(\"use_causal_mask is not supported.\")\n    return super().call(\n        query,\n        value,\n        key=key,\n        attention_mask=attention_mask,\n        return_attention_scores=return_attention_scores,\n        training=training,\n        use_causal_mask=use_causal_mask,\n    )\n","sourceCodeStart":332,"sourceCodeEnd":360,"githubUrl":"https://github.com/tensorflow/models/blob/e006f5f0d534913e49c1f1dae87364039fa607e2/official/nlp/modeling/layers/block_sparse_attention.py#L332-L360","documentation":"Error \"use_causal_mask is not supported.\" thrown in tensorflow/models.","triggerScenarios":"Thrown at official/nlp/modeling/layers/block_sparse_attention.py:350 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"}