{"record":{"id":"42ef96f394eaa415","repo":"xai-org/grok-build","slug":"no-lsp-server-configured-for","errorCode":null,"errorMessage":"No LSP server configured for {}","messagePattern":"No LSP server configured for (.+?)","errorType":"error_code","errorClass":null,"httpStatus":null,"severity":"error","filePath":"crates/codegen/xai-grok-tools/src/implementations/lsp/manager.rs","lineNumber":540,"sourceCode":"\n        let err = |msg: String| LspToolResult {\n            text: msg,\n            is_error: true,\n        };\n\n        let result = match input.operation {\n            LspOperation::GoToDefinition\n            | LspOperation::FindReferences\n            | LspOperation::Hover\n            | LspOperation::GoToImplementation => {\n                let (Some(fp), Some(line), Some(col)) =\n                    (&input.file_path, input.line, input.character)\n                else {\n                    return err(\"Required: file_path (string), line (int), character (int).\".into());\n                };\n                let path = PathBuf::from(fp);\n                let Some(client) = self.client_for_file_mut(&path) else {\n                    return err(format!(\"No LSP server configured for {}\", path.display()));\n                };\n                match input.operation {\n                    LspOperation::GoToDefinition => client\n                        .goto_definition(&path, line, col)\n                        .await\n                        .map(|l| format_locations_labeled(\"Definition\", &l)),\n                    LspOperation::FindReferences => client\n                        .goto_references(&path, line, col)\n                        .await\n                        .map(|l| format_locations_labeled(\"References\", &l)),\n                    LspOperation::GoToImplementation => client\n                        .goto_implementation(&path, line, col)\n                        .await\n                        .map(|l| format_locations_labeled(\"Implementations\", &l)),\n                    LspOperation::Hover => client.hover(&path, line, col).await.map(|opt| {\n                        opt.unwrap_or_else(|| \"No hover information available.\".to_string())\n                    }),\n                    _ => unreachable!(),","sourceCodeStart":522,"sourceCodeEnd":558,"githubUrl":"https://github.com/xai-org/grok-build/blob/bc7f02eddd3d84085849dc19ed216f11c23b0571/crates/codegen/xai-grok-tools/src/implementations/lsp/manager.rs#L522-L558","documentation":"After validating the input, the LSP manager resolves which language-server client handles the given file via `client_for_file_mut` (based on file extension / configured servers). If no LSP server is registered for the file's type, the tool returns 'No LSP server configured for {path}'. The environment lacks a language server mapping for that file, so no position query can be served.","triggerScenarios":"Calling a position-based LSP operation (GoToDefinition, FindReferences, Hover, GoToImplementation) on a file whose extension has no configured server — e.g. hovering a .txt/.md file, a file type with no rust-analyzer/pyright/gopls mapping, or running before any LSP server was registered in the manager.","commonSituations":"Querying files of an unsupported language in a polyglot repo; server binary not installed so registration was skipped at startup; config only maps common languages (rust/ts/python) but the project includes others; operating on generated or vendored files with unusual extensions.","solutions":["Configure an LSP server for the file's language (register rust-analyzer/pyright/gopls etc. for that extension) in the shell/tool LSP settings.","Verify the server binary is installed and on PATH so the client registers successfully at startup.","Check the file path/extension is what you intend (typos or wrong file targeted).","Confirm the server started healthily (logs) — some managers skip clients that failed to initialize."],"exampleFix":"// before: no server configured for .go files\nawait lspTool({ operation: \"hover\", file_path: \"main.go\", line: 0, character: 6 });\n// after: register gopls for Go first\nlspConfig.servers.push({ language: \"go\", extensions: [\".go\"], command: \"gopls\" });","handlingStrategy":"fallback","validationCode":"// check a server is configured for the file's extension before calling\nconst ext = path.extname(input.file_path);\nconst supported = lspConfig.servers.some(s => s.extensions.includes(ext));\nif (!supported) console.warn(`no LSP server for ${ext}; expect 'No LSP server configured'`);","typeGuard":"fn server_configured_for(ext: &str, cfg: &LspConfig) -> bool {\n    cfg.servers.iter().any(|s| s.extensions.iter().any(|e| e == ext))\n}","tryCatchPattern":"try {\n  const locs = await lspTool(input);\n} catch (e) {\n  if (String(e.message).startsWith(\"No LSP server configured for\")) {\n    // fall back to text-based search instead of LSP\n    return grepFallback(input.file_path, input.query);\n  } else { throw e; }\n}","preventionTips":["Register an LSP server for every language in the repo's file types","Verify server binaries are installed and start cleanly at startup","Fall back to grep/symbol-index tooling for unsupported file types","Log server registration failures so missing clients are visible early"],"tags":["lsp","configuration","missing-server","language-support"],"backgroundTag":"no-language-server-configured","analyzedSha":"bc7f02eddd3d84085849dc19ed216f11c23b0571","analyzedAt":"2026-08-31T04:59:42.031Z","schemaVersion":2},"datasetVersion":"2026-08-31T09:17:48.483Z"}