{"record":{"id":"e39eda8222b31ada","repo":"keras-team/keras","slug":"input-x-must-have-at-least-2-dimensions-receive-e39eda","errorCode":null,"errorMessage":"Input `x` must have at least 2 dimensions. Received shape: {x.shape}","messagePattern":"Input `x` must have at least 2 dimensions\\. Received shape: (.+?)","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"keras/src/backend/jax/ops/math.py","lineNumber":239,"sourceCode":"    result = result / scale\n    result = jnp.swapaxes(result, -2, -1)\n    return jnp.real(result), jnp.imag(result)\n\n\ndef istft(\n    x,\n    sequence_length,\n    sequence_stride,\n    fft_length,\n    length=None,\n    window=\"hann\",\n    center=True,\n):\n    x = _get_complex_tensor_from_tuple(x)\n    dtype = jnp.real(x).dtype\n\n    if len(x.shape) < 2:\n        raise ValueError(\n            f\"Input `x` must have at least 2 dimensions. \"\n            f\"Received shape: {x.shape}\"\n        )\n\n    expected_output_len = fft_length + sequence_stride * (x.shape[-2] - 1)\n    l_pad = (fft_length - sequence_length) // 2\n    r_pad = fft_length - sequence_length - l_pad\n\n    if window is not None:\n        if isinstance(window, str):\n            win = convert_to_tensor(\n                scipy.signal.get_window(window, sequence_length), dtype=dtype\n            )\n        else:\n            win = convert_to_tensor(window, dtype=dtype)\n        if len(win.shape) != 1 or win.shape[-1] != sequence_length:\n            raise ValueError(\n                \"The shape of `window` must be equal to [sequence_length].\"","sourceCodeStart":221,"sourceCodeEnd":257,"githubUrl":"https://github.com/keras-team/keras/blob/7a34a03db60bf60042242d6a556fc3be119046a5/keras/src/backend/jax/ops/math.py#L221-L257","documentation":"Error \"Input `x` must have at least 2 dimensions. Received shape: {x.shape}\" thrown in keras-team/keras.","triggerScenarios":"Thrown at keras/src/backend/jax/ops/math.py:239 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"}