deepseek-ai/deepseek-harness · error · TypeError

credentials-local: ${filename} must be a mapping

Error message

credentials-local: ${filename} must be a mapping

What it means

Error "credentials-local: ${filename} must be a mapping" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/credentials/credentials-local/src/index.ts:201

 * document is an empty store and needs no version.
 * @param text - the document's text.
 * @param filename - absolute path, quoted in errors.
 * @returns the parsed references and records.
 */
export function parseCredentialsDocument(text: string, filename: string): CredentialsDocument {
  // `prettyErrors` is on only for `linePos`; `error.message` is never used,
  // because the parser quotes the offending source line and in this document
  // that line is a secret. Only the code and position leave this function, and
  // the same rule governs every other diagnostic here — a key name is safe to
  // print, a value is not.
  const document = parseDocument(text, { prettyErrors: true, uniqueKeys: true })
  if (document.errors.length > 0) {
    throw new Error(`credentials-local: invalid document at ${filename}: ${
      document.errors.map(describeYamlError).join('; ')}`)
  }
  const root: unknown = document.toJS() ?? {}
  if (typeof root !== 'object' || root === null || Array.isArray(root)) {
    throw new TypeError(`credentials-local: ${filename} must be a mapping`)
  }
  const fields = root as Record<string, unknown>
  const keys = Object.keys(fields)
  // An empty (or comment-only) document is the empty store and needs no
  // version: there is nothing in it a later layout could have meant.
  if (keys.length === 0) return { refs: new Map(), records: new Map() }
  if (!('version' in fields)) {
    throw new Error(
      `credentials-local: ${filename} uses the pre-release flat layout. Add \`version: ${DOCUMENT_VERSION}\``
      + ` and nest the existing ${keys.length} ${keys.length === 1 ? 'entry' : 'entries'} under \`refs:\`.`
      + ' No values need to change.',
    )
  }
  if (fields['version'] !== DOCUMENT_VERSION) {
    throw new Error(
      `credentials-local: ${filename} declares version ${JSON.stringify(fields['version'])};`
      + ` this build reads version ${DOCUMENT_VERSION}`,
    )

View on GitHub (pinned to b150a551b8)

When it happens

Trigger: Thrown at packages/credentials/credentials-local/src/index.ts:201 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of deepseek-ai/deepseek-harness@b150a551b8 (2026-08-24). Data as JSON: /api/errors/41d9031fac1bd6a8. Report an issue: GitHub.