{"record":{"id":"334e97e2fed4db47","repo":"zellij-org/zellij","slug":"no-active-pane-for-client-client-id","errorCode":null,"errorMessage":"no active pane for client {client_id}","messagePattern":"no active pane for client (.+?)","errorType":"exception","errorClass":"anyhow::Error","httpStatus":null,"severity":"error","filePath":"zellij-server/src/tab/mod.rs","lineNumber":4436,"sourceCode":"        let bracketed_paste_begin = vec![27, 91, 50, 48, 48, 126];\n        let bracketed_paste_end = vec![27, 91, 50, 48, 49, 126];\n\n        self.write_to_pane_id(&None, bracketed_paste_begin, false, pane_id, None, None)?;\n        self.write_to_pane_id(&None, bytes, false, pane_id, None, None)?;\n        self.write_to_pane_id(&None, bracketed_paste_end, false, pane_id, None, completion)?;\n        Ok(())\n    }\n\n    pub fn paste_to_active_terminal(\n        &mut self,\n        bytes: Vec<u8>,\n        client_id: ClientId,\n        completion: Option<NotificationEnd>,\n    ) -> Result<()> {\n        let err_context = || format!(\"failed to paste to active terminal for client {client_id}\");\n        let active_pane_id = self\n            .get_active_pane_id(client_id)\n            .ok_or_else(|| anyhow!(\"no active pane for client {client_id}\"))\n            .with_context(err_context)?;\n        self.paste_to_pane_id(bytes, active_pane_id, completion)\n    }\n\n    pub fn write_to_pane_id(\n        &mut self,\n        key_with_modifier: &Option<KeyWithModifier>,\n        raw_input_bytes: Vec<u8>,\n        raw_input_bytes_are_kitty: bool,\n        pane_id: PaneId,\n        client_id: Option<ClientId>,\n        completion_tx: Option<NotificationEnd>,\n    ) -> Result<bool> {\n        // returns true if we need to update the UI (eg. when a command pane is closed with ctrl-c)\n        let err_context = || format!(\"failed to write to pane with id {pane_id:?}\");\n\n        let mut should_update_ui = false;\n        let is_sync_panes_active = self.is_sync_panes_active();","sourceCodeStart":4418,"sourceCodeEnd":4454,"githubUrl":"https://github.com/zellij-org/zellij/blob/474ea0cef620c83d6ec05a7c28c7f80c4f63bbbb/zellij-server/src/tab/mod.rs#L4418-L4454","documentation":"Thrown by Tab::paste_to_active_terminal when Tab::get_active_pane_id(client_id) returns None before a paste (clipboard) is delivered. Unlike the write path, get_active_pane_id (tab/mod.rs:3732-3737) consults ONLY the floating pane set when floating panes are visible, and only the tiled set otherwise — no cross-fallback. So the paste fails whenever the consulted map has no active pane for that client, even if the other map has one.","triggerScenarios":"Paste action (e.g. the paste keybinding or clipboard plugin) fires while: the tab has no panes left; floating panes are visible but no floating pane is focused for the client; or the client's tiled focus was never initialized (fresh connect, first input).","commonSituations":"Pasting immediately after closing all panes or after a command pane exits; pasting while a floating-pane overlay is shown with no float focused; web/reconnecting clients pasting before focus assignment.","solutions":["Check whether a pane is actually focused for your client at paste time (look at the highlight in the UI); if the tab is empty, no paste target exists — open a pane first.","If tiled panes exist but floats are visible, dismiss or focus a floating pane (e.g. toggle-float / click a float) and retry the paste.","If it reproduces reliably with visible panes, capture the client_id and tab state and report upstream — get_active_pane_id lacking the tiled fallback here is a known asymmetry vs. write_to_active_terminal.","Update zellij to pick up pane-close focus-fixes."],"exampleFix":null,"handlingStrategy":"validation","validationCode":"// verify a paste target exists before pasting\nmatch tab.get_active_pane_id(client_id) {\n    Some(pane_id) => tab.paste_to_pane_id(bytes, pane_id, completion),\n    None => {\n        log::debug!(\"paste dropped: no active pane for client {client_id}\");\n        Ok(())\n    },\n}","typeGuard":null,"tryCatchPattern":"match tab.paste_to_active_terminal(bytes, client_id, completion) {\n    Ok(_) => {},\n    Err(e) if e.to_string().contains(\"no active pane for client\") => Ok(()), // benign: nowhere to paste\n    Err(e) => Err(e),\n}","preventionTips":["Disable or rebind paste so it cannot fire in empty tabs (or guard it in a custom plugin).","Remember get_active_pane_id only consults floating panes when floats are visible — ensure a float is focused before pasting in that state.","Re-run focus assignment after closing panes so a paste target always exists."],"tags":["zellij","rust","active-pane","clipboard","paste"],"backgroundTag":"missing-active-pane","analyzedSha":"474ea0cef620c83d6ec05a7c28c7f80c4f63bbbb","analyzedAt":"2026-08-19T07:42:58.758Z","contentChangedAt":"2026-08-19T07:42:58.758Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}