{"record":{"id":"a17129b361b9f514","repo":"keras-team/keras","slug":"provide-either-a-layer-name-or-layer-index-at-get","errorCode":null,"errorMessage":"Provide either a layer name or layer index at `get_layer`.","messagePattern":"Provide either a layer name or layer index at `get_layer`\\.","errorType":"exception","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"keras/src/models/model.py","lineNumber":222,"sourceCode":"        if index is not None:\n            if len(self.layers) <= index:\n                raise ValueError(\n                    f\"Was asked to retrieve layer at index {index}\"\n                    f\" but model only has {len(self.layers)}\"\n                    \" layers.\"\n                )\n            else:\n                return self.layers[index]\n\n        if name is not None:\n            for layer in self.layers:\n                if layer.name == name:\n                    return layer\n            raise ValueError(\n                f\"No such layer: {name}. Existing layers are: \"\n                f\"{list(layer.name for layer in self.layers)}.\"\n            )\n        raise ValueError(\n            \"Provide either a layer name or layer index at `get_layer`.\"\n        )\n\n    @traceback_utils.filter_traceback\n    def summary(\n        self,\n        line_length=None,\n        positions=None,\n        print_fn=None,\n        expand_nested=False,\n        show_trainable=False,\n        layer_range=None,\n    ):\n        \"\"\"Prints a string summary of the network.\n\n        Args:\n            line_length: Total length of printed lines\n                (e.g. set this to adapt the display to different","sourceCodeStart":204,"sourceCodeEnd":240,"githubUrl":"https://github.com/keras-team/keras/blob/7a34a03db60bf60042242d6a556fc3be119046a5/keras/src/models/model.py#L204-L240","documentation":"Error \"Provide either a layer name or layer index at `get_layer`.\" thrown in keras-team/keras.","triggerScenarios":"Thrown at keras/src/models/model.py:222 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"}