{"record":{"id":"5795aada4c89c134","repo":"keras-team/keras","slug":"expected-trainable-to-be-a-boolean-received-tr","errorCode":null,"errorMessage":"Expected `trainable` to be a boolean. Received: trainable={trainable} (of type {type(trainable)})","messagePattern":"Expected `trainable` to be a boolean\\. Received: trainable=(.+?) \\(of type (.+?)\\)","errorType":"validation","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"keras/src/layers/layer.py","lineNumber":308,"sourceCode":"                \"first layer in the model instead.\",\n                stacklevel=2,\n            )\n            self._input_shape_arg = input_shape_arg\n        if kwargs:\n            raise ValueError(\n                \"Unrecognized keyword arguments \"\n                f\"passed to {self.__class__.__name__}: {kwargs}\"\n            )\n\n        self._path = None  # Will be determined in `build_wrapper`\n        self.built = False\n        self.autocast = autocast\n        self._input_spec = None\n        self._called = False\n        self.supports_jit = True\n\n        if not isinstance(trainable, bool):\n            raise ValueError(\n                \"Expected `trainable` to be a boolean. \"\n                f\"Received: trainable={trainable} (of type \"\n                f\"{type(trainable)})\"\n            )\n        self._trainable = trainable\n        self._losses = []\n        self._loss_ids = set()\n        self._losses_override = []\n\n        self._call_signature = inspect.signature(self.call)\n        self.call_signature_parameters = [\n            p.name for p in self._call_signature.parameters.values()\n        ]\n        self._call_has_training_arg = (\n            \"training\" in self.call_signature_parameters\n        )\n        self._call_has_mask_arg = \"mask\" in self.call_signature_parameters\n","sourceCodeStart":290,"sourceCodeEnd":326,"githubUrl":"https://github.com/keras-team/keras/blob/7a34a03db60bf60042242d6a556fc3be119046a5/keras/src/layers/layer.py#L290-L326","documentation":"Error \"Expected `trainable` to be a boolean. Received: trainable={trainable} (of type {type(trainable)})\" thrown in keras-team/keras.","triggerScenarios":"Thrown at keras/src/layers/layer.py:308 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"}