{"record":{"id":"75b49d0886acc429","repo":"keras-team/keras","slug":"input-x-should-be-a-tuple-of-two-tensors-real-75b49d","errorCode":null,"errorMessage":"Input `x` should be a tuple of two tensors - real and imaginary.Received: x={x}","messagePattern":"Input `x` should be a tuple of two tensors - real and imaginary\\.Received: x=(.+?)","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"keras/src/backend/tensorflow/math.py","lineNumber":116,"sourceCode":"    if x.shape[-1] != y.shape[-1]:\n        raise ValueError(\"Last dimension of inputs to `cdist` must match\")\n    diff = tf.expand_dims(x, -2) - tf.expand_dims(y, -3)\n    return tf.sqrt(tf.reduce_sum(tf.square(diff), axis=-1))\n\n\ndef extract_sequences(x, sequence_length, sequence_stride):\n    return tf.signal.frame(\n        x,\n        frame_length=sequence_length,\n        frame_step=sequence_stride,\n        axis=-1,\n        pad_end=False,\n    )\n\n\ndef _get_complex_tensor_from_tuple(x):\n    if not isinstance(x, (tuple, list)) or len(x) != 2:\n        raise ValueError(\n            \"Input `x` should be a tuple of two tensors - real and imaginary.\"\n            f\"Received: x={x}\"\n        )\n    # `convert_to_tensor` does not support passing complex tensors. We separate\n    # the input out into real and imaginary and convert them separately.\n    real, imag = x\n    real = convert_to_tensor(real)\n    imag = convert_to_tensor(imag)\n    # Check shapes.\n    if real.shape != imag.shape:\n        raise ValueError(\n            \"Input `x` should be a tuple of two tensors - real and imaginary.\"\n            \"Both the real and imaginary parts should have the same shape. \"\n            f\"Received: x[0].shape = {real.shape}, x[1].shape = {imag.shape}\"\n        )\n    # Ensure dtype is float.\n    if not real.dtype.is_floating or not imag.dtype.is_floating:\n        raise ValueError(","sourceCodeStart":98,"sourceCodeEnd":134,"githubUrl":"https://github.com/keras-team/keras/blob/7a34a03db60bf60042242d6a556fc3be119046a5/keras/src/backend/tensorflow/math.py#L98-L134","documentation":"Error \"Input `x` should be a tuple of two tensors - real and imaginary.Received: x={x}\" thrown in keras-team/keras.","triggerScenarios":"Thrown at keras/src/backend/tensorflow/math.py:116 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":"7a34a03db60bf60042242d6a556fc3be119046a5","analyzedAt":"2026-08-25T21:25:25.994Z","schemaVersion":2},"datasetVersion":"2026-08-26T02:17:13.382Z"}