{"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":4380,"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":4362,"sourceCodeEnd":4398,"githubUrl":"https://github.com/zellij-org/zellij/blob/98a0837077492d53dd252ab30bc3e43e41e504f4/zellij-server/src/tab/mod.rs#L4362-L4398","documentation":"Returned by Tab::paste_to_active_terminal when Tab::get_active_pane_id returns None for the client. The paste buffer is dropped: there is no focused pane (floating or tiled) to receive the pasted bytes, so the paste silently fails with an error Result.","triggerScenarios":"Calling paste (bracketed paste, Ctrl+V/paste keybinding, or programmatic paste via the session) when the client's active pane cannot be resolved - empty tab, all panes closed, focus in transition after a pane exit or tab switch.","commonSituations":"Pasting right after the focused pane's process exits; pasting while floating panes are toggled visible with none focused; clipboard managers auto-pasting into a transiently empty tab; scripting paste before focus settles.","solutions":["Confirm a pane is focused (visible cursor) before pasting; open or select a pane and retry","Check that the paste target tab has live panes: `zellij action new-pane` if the tab is empty","For automation, sequence paste after a focus/render event, not immediately after tab/pane mutations","If paste repeatedly fails on a live tab, run with `zellij --debug` and inspect the log for focus errors"],"exampleFix":"// before\nlet 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\n// after: degrade gracefully using the first selectable pane\nlet active_pane_id = self\n    .get_active_pane_id_or_first_selectable(client_id)\n    .ok_or_else(|| anyhow!(\"no active pane for client {client_id}\"))\n    .with_context(err_context)?;","handlingStrategy":"validation","validationCode":"// verify paste target before pasting\nif tab.get_active_pane_id(client_id).is_none() {\n    log::debug!(\"paste dropped: no active pane for client {client_id}\");\n    return Ok(());\n}","typeGuard":"fn paste_target_exists(tab: &Tab, client_id: ClientId) -> bool {\n    tab.get_active_pane_id_or_first_selectable(client_id).is_some()\n}","tryCatchPattern":"match tab.paste_to_active_terminal(bytes, client_id, completion) {\n    Ok(()) => {},\n    Err(e) => log::debug!(\"paste skipped for client {client_id}: {e:#}\"),\n}","preventionTips":["Paste only when a pane cursor is visible/focused","Clipboard-manager auto-paste should retry once after a focus event rather than assume focus","Automation: sequence paste after observing a successful focus/render, especially after tab switches"],"tags":["rust","zellij","paste","focus","clipboard"],"backgroundTag":null,"analyzedSha":"98a0837077492d53dd252ab30bc3e43e41e504f4","analyzedAt":"2026-08-16T13:02:01.396Z","schemaVersion":2},"datasetVersion":"2026-08-16T13:17:31.715Z"}