{"record":{"id":"3d278e56fdc21594","repo":"astral-sh/ruff","slug":"failed-to-send-notification-method-method-er","errorCode":null,"errorMessage":"Failed to send notification (method={method}): {error}","messagePattern":"Failed to send notification \\(method=(.+?)\\): (.+?)","errorType":"exception","errorClass":"anyhow::Error","httpStatus":null,"severity":"error","filePath":"crates/ruff_server/src/session/client.rs","lineNumber":106,"sourceCode":"                format!(\"Failed to send request method={method}\", method = R::METHOD)\n            })?;\n\n        Ok(())\n    }\n\n    /// Sends a notification to the client.\n    pub(crate) fn send_notification<N>(&self, params: N::Params) -> crate::Result<()>\n    where\n        N: lsp_types::Notification,\n    {\n        let method = N::METHOD.to_string();\n\n        self.client_sender\n            .send(lsp_server::Message::Notification(Notification::new(\n                method, params,\n            )))\n            .map_err(|error| {\n                anyhow!(\n                    \"Failed to send notification (method={method}): {error}\",\n                    method = N::METHOD\n                )\n            })\n    }\n\n    /// Sends a notification without any parameters to the client.\n    ///\n    /// This is useful for notifications that don't require any data.\n    #[expect(dead_code)]\n    fn send_notification_no_params(&self, method: &str) -> crate::Result<()> {\n        self.client_sender\n            .send(lsp_server::Message::Notification(Notification::new(\n                method.to_string(),\n                Value::Null,\n            )))\n            .map_err(|error| anyhow!(\"Failed to send notification (method={method}): {error}\"))\n    }","sourceCodeStart":88,"sourceCodeEnd":124,"githubUrl":"https://github.com/astral-sh/ruff/blob/672bb4edf04c84f8b0753346359daee4057158f2/crates/ruff_server/src/session/client.rs#L88-L124","documentation":"Error \"Failed to send notification (method={method}): {error}\" thrown in astral-sh/ruff.","triggerScenarios":"Thrown at crates/ruff_server/src/session/client.rs:106 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":"672bb4edf04c84f8b0753346359daee4057158f2","analyzedAt":"2026-08-16T08:54:05.464Z","schemaVersion":2},"datasetVersion":"2026-08-16T13:17:31.715Z"}