{"record":{"id":"4180d3a969aa434f","repo":"zellij-org/zellij","slug":"implicit-sizing-within-fixed-size-panes-is-not-sup","errorCode":null,"errorMessage":"Implicit sizing within fixed-size panes is not supported","messagePattern":"Implicit sizing within fixed-size panes is not supported","errorType":"panic","errorClass":null,"httpStatus":null,"severity":"error","filePath":"zellij-utils/src/input/layout.rs","lineNumber":1924,"sourceCode":"        None\n    };\n\n    let mut total_pane_size = 0;\n    for (&size, _part) in sizes.iter().zip(&*layout.children) {\n        let mut split_dimension = match size {\n            Some(SplitSize::Percent(percent)) => Dimension::percent(percent as f64),\n            Some(SplitSize::Fixed(size)) => Dimension::fixed(size),\n            None => {\n                let free_percent = if let Some(p) = split_dimension_space.as_percent() {\n                    p - sizes\n                        .iter()\n                        .map(|&s| match s {\n                            Some(SplitSize::Percent(ip)) => ip as f64,\n                            _ => 0.0,\n                        })\n                        .sum::<f64>()\n                } else {\n                    panic!(\"Implicit sizing within fixed-size panes is not supported\");\n                };\n                Dimension::percent(free_percent / flex_parts as f64)\n            },\n        };\n\n        split_dimension.adjust_inner(\n            total_split_dimension_space\n                .as_usize()\n                .saturating_sub(total_fixed_size),\n        );\n        total_pane_size += split_dimension.as_usize();\n\n        let geom = match layout.children_split_direction {\n            SplitDirection::Vertical => PaneGeom {\n                x: current_position,\n                y: space_to_split.y,\n                cols: split_dimension,\n                rows: inherited_dimension,","sourceCodeStart":1906,"sourceCodeEnd":1942,"githubUrl":"https://github.com/zellij-org/zellij/blob/a162323384dff3fbd9c68a4c0971f4f6efca424a/zellij-utils/src/input/layout.rs#L1906-L1942","documentation":"Error \"Implicit sizing within fixed-size panes is not supported\" thrown in zellij-org/zellij.","triggerScenarios":"Occurs at zellij-utils/src/input/layout.rs:1924 when the operation fails: \"Implicit sizing within fixed-size panes is not supported\". Currently there is no defensive handling preventing or contextualizing this failure before it surfaces.","commonSituations":"Arises from layout files that combine fixed dimensions with content-derived sizing.","solutions":["Give the pane an explicit size (rows/columns) in the layout instead of implicit sizing.","Remove the fixed size constraint if implicit sizing is needed."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"a162323384dff3fbd9c68a4c0971f4f6efca424a","analyzedAt":"2026-08-19T07:42:58.758Z","contentChangedAt":"2026-08-19T07:42:58.758Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}