{"record":{"id":"2c0ef9f50977a7cd","repo":"keras-team/keras","slug":"argument-input-tensor-must-be-a-kerastensor-rec","errorCode":null,"errorMessage":"Argument `input_tensor` must be a KerasTensor. Received invalid type: input_tensor={input_tensor} (of type {type(input_tensor)})","messagePattern":"Argument `input_tensor` must be a KerasTensor\\. Received invalid type: input_tensor=(.+?) \\(of type (.+?)\\)","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"keras/src/layers/core/input_layer.py","lineNumber":36,"sourceCode":"        batch_shape=None,\n        input_tensor=None,\n        optional=False,\n        name=None,\n        **kwargs,\n    ):\n        super().__init__(name=name)\n\n        if \"input_shape\" in kwargs:\n            warnings.warn(\n                \"Argument `input_shape` is deprecated. Use `shape` instead.\"\n            )\n            shape = kwargs.pop(\"input_shape\")\n        if \"batch_input_shape\" in kwargs:\n            batch_shape = kwargs.pop(\"batch_input_shape\")\n\n        if input_tensor is not None:\n            if not isinstance(input_tensor, backend.KerasTensor):\n                raise ValueError(\n                    \"Argument `input_tensor` must be a KerasTensor. \"\n                    f\"Received invalid type: input_tensor={input_tensor} \"\n                    f\"(of type {type(input_tensor)})\"\n                )\n            if batch_size is not None:\n                if (\n                    len(input_tensor.shape) < 1\n                    or input_tensor.shape[0] != batch_size\n                ):\n                    raise ValueError(\n                        \"When providing the `input_tensor` argument, you \"\n                        \"cannot provide an incompatible `batch_size` argument.\"\n                    )\n            if shape is not None:\n                if (\n                    len(shape) != len(input_tensor.shape) - 1\n                    or shape != input_tensor.shape[1:]\n                ):","sourceCodeStart":18,"sourceCodeEnd":54,"githubUrl":"https://github.com/keras-team/keras/blob/7a34a03db60bf60042242d6a556fc3be119046a5/keras/src/layers/core/input_layer.py#L18-L54","documentation":"Error \"Argument `input_tensor` must be a KerasTensor. Received invalid type: input_tensor={input_tensor} (of type {type(input_tensor)})\" thrown in keras-team/keras.","triggerScenarios":"Thrown at keras/src/layers/core/input_layer.py:36 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"}