{"record":{"id":"f39e1a195b3436a5","repo":"keras-team/keras","slug":"power-iterations-should-be-greater-than-zero-re","errorCode":null,"errorMessage":"`power_iterations` should be greater than zero. Received: `power_iterations={power_iterations}`","messagePattern":"`power_iterations` should be greater than zero\\. Received: `power_iterations=(.+?)`","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"keras/src/layers/normalization/spectral_normalization.py","lineNumber":47,"sourceCode":"    >>> y.shape\n    (1, 9, 9, 2)\n\n    Wrap `keras.layers.Dense`:\n    >>> x = np.random.rand(1, 10, 10, 1)\n    >>> dense = SpectralNormalization(keras.layers.Dense(10))\n    >>> y = dense(x)\n    >>> y.shape\n    (1, 10, 10, 10)\n\n    Reference:\n\n    - [Spectral Normalization for GAN](https://arxiv.org/abs/1802.05957).\n    \"\"\"\n\n    def __init__(self, layer, power_iterations=1, **kwargs):\n        super().__init__(layer, **kwargs)\n        if power_iterations <= 0:\n            raise ValueError(\n                \"`power_iterations` should be greater than zero. Received: \"\n                f\"`power_iterations={power_iterations}`\"\n            )\n        self.power_iterations = power_iterations\n\n    def build(self, input_shape):\n        super().build(input_shape)\n        self.input_spec = InputSpec(min_ndim=1, axes={-1: input_shape[-1]})\n\n        if hasattr(self.layer, \"kernel\"):\n            self.kernel = self.layer.kernel\n        elif hasattr(self.layer, \"embeddings\"):\n            self.kernel = self.layer.embeddings\n        else:\n            raise ValueError(\n                f\"{type(self.layer).__name__} object has no attribute 'kernel' \"\n                \"nor 'embeddings'\"\n            )","sourceCodeStart":29,"sourceCodeEnd":65,"githubUrl":"https://github.com/keras-team/keras/blob/7a34a03db60bf60042242d6a556fc3be119046a5/keras/src/layers/normalization/spectral_normalization.py#L29-L65","documentation":"Error \"`power_iterations` should be greater than zero. Received: `power_iterations={power_iterations}`\" thrown in keras-team/keras.","triggerScenarios":"Thrown at keras/src/layers/normalization/spectral_normalization.py:47 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"}