{"record":{"id":"9d57101b133345a6","repo":"google-gemini/gemini-cli","slug":"errormessages-join-n-nplease-fix-the-config","errorCode":null,"errorMessage":"${errorMessages.join('\\n')}\\nPlease fix the configuration file(s) and try again.","messagePattern":"(.+?)\\\\nPlease fix the configuration file\\(s\\) and try again\\.","errorType":"exception","errorClass":"FatalConfigError","httpStatus":null,"severity":"error","filePath":"packages/cli/src/config/settings.ts","lineNumber":922,"sourceCode":"  const tempMergedSettings = mergeSettings(\n    systemSettings,\n    systemDefaultSettings,\n    userSettings,\n    workspaceSettings,\n    isTrusted,\n  );\n\n  // loadEnvironment depends on settings so we have to create a temp version of\n  // the settings to avoid a cycle\n  loadEnvironment(tempMergedSettings, workspaceDir);\n\n  // Check for any fatal errors before proceeding\n  const fatalErrors = settingsErrors.filter((e) => e.severity === 'error');\n  if (fatalErrors.length > 0) {\n    const errorMessages = fatalErrors.map(\n      (error) => `Error in ${error.path}: ${error.message}`,\n    );\n    throw new FatalConfigError(\n      `${errorMessages.join('\\n')}\\nPlease fix the configuration file(s) and try again.`,\n    );\n  }\n\n  const loadedSettings = new LoadedSettings(\n    {\n      path: systemSettingsPath,\n      settings: systemSettings,\n      originalSettings: systemOriginalSettings,\n      rawJson: systemResult.rawJson,\n      readOnly: true,\n    },\n    {\n      path: systemDefaultsPath,\n      settings: systemDefaultSettings,\n      originalSettings: systemDefaultsOriginalSettings,\n      rawJson: systemDefaultsResult.rawJson,\n      readOnly: true,","sourceCodeStart":904,"sourceCodeEnd":940,"githubUrl":"https://github.com/google-gemini/gemini-cli/blob/5024443c7217464a66e98f80d73172a26440bd8f/packages/cli/src/config/settings.ts#L904-L940","documentation":"Thrown by the settings loader after merging system, user, and workspace settings.json files when at least one validation error has severity 'error'. It is a FatalConfigError (exit code 52). The message aggregates every fatal error as 'Error in <path>: <message>' so the offending file and reason are visible.","triggerScenarios":"loadSettings() runs schema/validation across the merged settings stack; settingsErrors contains entries whose .severity === 'error' (malformed JSON, schema violations, invalid enum values, type mismatches marked fatal).","commonSituations":"A typo or invalid field in ~/.gemini/settings.json or .gemini/settings.json (e.g. wrong output format, bad model name, unknown key at error severity); hand-editing the JSON and leaving a trailing comma or unquoted value; a settings schema change after an upgrade rejecting previously-tolerated keys.","solutions":["Read the full message: each line names the exact file path and the validation message for that file.","Open the named settings.json and fix the specific field/value cited (correct types, valid enum values, valid JSON syntax).","Validate the file against the settings JSON schema (docs/schemas) or temporarily rename it to confirm it is the culprit.","Re-run the CLI to confirm no further fatal errors remain; warnings (severity !== 'error') do not block startup."],"exampleFix":"// before — ~/.gemini/settings.json\n{ \"outputFormat\": \"jsom\", \"theme\": \"auto\" }\n// after\n{ \"outputFormat\": \"json\", \"theme\": \"auto\" }","handlingStrategy":"validation","validationCode":"import Ajv from 'ajv';\nimport settingsSchema from './docs/schemas/settings.schema.json';\n\nconst ajv = new Ajv({ allErrors: true });\nconst validate = ajv.compile(settingsSchema);\n\nfunction validateSettingsFile(filePath: string): string[] {\n  const json = JSON.parse(fs.readFileSync(filePath, 'utf8'));\n  if (!validate(json)) {\n    return (validate.errors || []).map((e) => `${e.instancePath} ${e.message}`);\n  }\n  return [];\n}","typeGuard":"function isSettingsShape(v: unknown): v is Record<string, unknown> {\n  return typeof v === 'object' && v !== null && !Array.isArray(v);\n}","tryCatchPattern":"try {\n  const settings = await loadSettings(...);\n} catch (e) {\n  if (e instanceof FatalConfigError) {\n    // exit code 52: e.message lists each 'Error in <path>: <reason>'\n    for (const line of e.message.split('\\n')) console.error(line);\n  }\n  throw e;\n}","preventionTips":["Validate settings.json with the published schema in CI/pre-commit before shipping config.","Avoid hand-editing merged settings; edit one scope (system/user/workspace) at a time.","After upgrading the CLI, re-validate existing settings against the new schema."],"tags":["configuration","settings","json","validation","schema"],"backgroundTag":null,"analyzedSha":"5024443c7217464a66e98f80d73172a26440bd8f","analyzedAt":"2026-08-12T06:01:53.711Z","schemaVersion":2},"datasetVersion":"2026-08-12T13:17:24.610Z"}