{"record":{"id":"b46c189a60ff42f0","repo":"keras-team/keras","slug":"invalid-input-type-expected-float16-float32","errorCode":null,"errorMessage":"Invalid input type. Expected `float16`, `float32` or `float64`. Received: input type={dtype}","messagePattern":"Invalid input type\\. Expected `float16`, `float32` or `float64`\\. Received: input type=(.+?)","errorType":"validation","errorClass":"TypeError","httpStatus":null,"severity":"error","filePath":"keras/src/layers/preprocessing/stft_spectrogram.py","lineNumber":297,"sourceCode":"                outputs,\n                [batch_size, channels, freq_channels, time_seq],\n            )\n        else:\n            _, freq_channels, time_seq = ops.shape(outputs)\n            outputs = ops.reshape(\n                outputs,\n                [batch_size, channels, freq_channels, time_seq],\n            )\n        return outputs\n\n    def call(self, inputs):\n        dtype = inputs.dtype\n        if backend.standardize_dtype(dtype) not in {\n            \"float16\",\n            \"float32\",\n            \"float64\",\n        }:\n            raise TypeError(\n                \"Invalid input type. Expected `float16`, `float32` or \"\n                f\"`float64`. Received: input type={dtype}\"\n            )\n\n        real_signal = None\n        imag_signal = None\n        power = None\n\n        if self.mode != \"imag\":\n            real_signal = self._apply_conv(inputs, self.real_kernel)\n        if self.mode != \"real\":\n            imag_signal = self._apply_conv(inputs, self.imag_kernel)\n\n        if self.mode == \"real\":\n            return self._adjust_shapes(real_signal)\n        elif self.mode == \"imag\":\n            return self._adjust_shapes(imag_signal)\n        elif self.mode == \"angle\":","sourceCodeStart":279,"sourceCodeEnd":315,"githubUrl":"https://github.com/keras-team/keras/blob/7a34a03db60bf60042242d6a556fc3be119046a5/keras/src/layers/preprocessing/stft_spectrogram.py#L279-L315","documentation":"Error \"Invalid input type. Expected `float16`, `float32` or `float64`. Received: input type={dtype}\" thrown in keras-team/keras.","triggerScenarios":"Thrown at keras/src/layers/preprocessing/stft_spectrogram.py:297 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"}