zellij-org/zellij · error · anyhow::Error

WriteCharsToPaneId missing pane_id

Error message

WriteCharsToPaneId missing pane_id

What it means

Error "WriteCharsToPaneId missing pane_id" thrown in zellij-org/zellij.

Source

Thrown at zellij-utils/src/ipc/protobuf_conversion.rs:2280

            ActionType::WriteToPaneId(write_to_pane_id_action) => {
                Ok(crate::input::actions::Action::WriteToPaneId {
                    bytes: write_to_pane_id_action
                        .bytes
                        .into_iter()
                        .map(|b| b as u8)
                        .collect(),
                    pane_id: write_to_pane_id_action
                        .pane_id
                        .ok_or_else(|| anyhow!("WriteToPaneId missing pane_id"))?
                        .try_into()?,
                })
            },
            ActionType::WriteCharsToPaneId(write_chars_to_pane_id_action) => {
                Ok(crate::input::actions::Action::WriteCharsToPaneId {
                    chars: write_chars_to_pane_id_action.chars,
                    pane_id: write_chars_to_pane_id_action
                        .pane_id
                        .ok_or_else(|| anyhow!("WriteCharsToPaneId missing pane_id"))?
                        .try_into()?,
                })
            },
            ActionType::Paste(paste_action) => Ok(crate::input::actions::Action::Paste {
                chars: paste_action.chars,
                pane_id: paste_action.pane_id.map(|p| p.try_into()).transpose()?,
            }),
            ActionType::SwitchToMode(switch_mode_action) => {
                Ok(crate::input::actions::Action::SwitchToMode {
                    input_mode: proto_i32_to_input_mode(switch_mode_action.input_mode)?,
                })
            },
            ActionType::SwitchModeForAllClients(switch_mode_action) => {
                Ok(crate::input::actions::Action::SwitchModeForAllClients {
                    input_mode: proto_i32_to_input_mode(switch_mode_action.input_mode)?,
                })
            },
            ActionType::Resize(resize_action) => Ok(crate::input::actions::Action::Resize {

View on GitHub (pinned to e839bfffa5)

Solutions

1. Include the required 'pane_id' field in the protobuf message before sending it.
2. Verify the sender populates all mandatory fields; add a presence check before conversion.

When it happens

Trigger: Occurs when a protobuf message received over IPC omits the required field; deserialization fails instead of using a default.

Common situations: Occurs when a client or plugin sends an incompletely populated message, often from a version mismatch or hand-crafted payload.

AI-assisted analysis of zellij-org/zellij@e839bfffa5 (2026-08-19). Data as JSON: /api/errors/0afce1394768ac43. Report an issue: GitHub.