{"record":{"id":"f1ce9e3fd58bdc83","repo":"remix-run/remix","slug":"rmx-invalid-config-f1ce9e","errorCode":"RMX_INVALID_CONFIG","errorMessage":"${filePath}:${line}:${column}: ${details}","messagePattern":"\\$\\{filePath\\}:\\$\\{line\\}:\\$\\{column\\}: \\$\\{details\\}","errorType":"validation","errorClass":"CliError","httpStatus":null,"severity":"error","filePath":"packages/cli/src/lib/remix-config.ts","lineNumber":738,"sourceCode":"\n  if (closingIndex === -1) return undefined\n\n  return {\n    flags: pattern.slice(closingIndex + 1),\n    source: pattern.slice(1, closingIndex),\n  }\n}\n\nfunction throwConfigError(\n  source: ConfigSource,\n  propertyPath: JsonPath,\n  details: string,\n  offset?: number,\n): never {\n  let node = source.root == null ? undefined : findNodeAtLocation(source.root, propertyPath)\n  let location = getLineAndColumn(source.text, offset ?? node?.offset ?? 0)\n  let label = propertyPath.length === 0 ? '' : ` at ${propertyPath.join('.')}`\n  throw invalidRemixConfig(source.filePath, `${details}${label}`, location.line, location.column)\n}\n\nfunction getLineAndColumn(text: string, offset: number): { column: number; line: number } {\n  let line = 1\n  let column = 1\n\n  for (let index = 0; index < offset; index++) {\n    if (text[index] === '\\n') {\n      line++\n      column = 1\n    } else {\n      column++\n    }\n  }\n\n  return { column, line }\n}\n","sourceCodeStart":720,"sourceCodeEnd":756,"githubUrl":"https://github.com/remix-run/remix/blob/9696913134be3a4423513d2775f7b31d6917c049/packages/cli/src/lib/remix-config.ts#L720-L756","documentation":"Internal helper for Remix config validation: it locates the JSON node at `propertyPath` in the parsed config source, computes line/column, and throws RMX_INVALID_CONFIG with a `${filePath}:${line}:${column}: ${details}` message. It is raised for any schema or semantic violation found while validating the config file.","triggerScenarios":"A config file with an invalid value for a known property — wrong type, unknown nested key, or failed validation — surfaced during loadConfig/loadRemixConfig validation passes.","commonSituations":"Typos in config keys, wrong value types (string vs number), or using config options removed/renamed between Remix versions.","solutions":["Read the `file:line:column` in the message and fix the property at that exact location","Compare your config against the current config schema/types for your Remix version","Remove or correct the offending key named after 'at <propertyPath>'"],"exampleFix":"// before (remix.config.ts)\nexport default { ports: '3000' }\n// after\nexport default { ports: 3000 }","handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"catch (error) {\n  if (error instanceof Error && error.code === 'RMX_INVALID_CONFIG') {\n    // parse file:line:column from message and surface to editor\n    const [loc] = error.message.split(':').slice(1, 4)\n  }\n  throw error\n}","preventionTips":["Type-check configs against exported config types","Use an editor with the Remix config JSON/TS schema for early feedback"],"tags":["cli","config","validation"],"backgroundTag":"config-validation-failed","analyzedSha":"9696913134be3a4423513d2775f7b31d6917c049","analyzedAt":"2026-08-27T19:55:01.024Z","schemaVersion":2},"datasetVersion":"2026-08-28T00:17:15.603Z"}