deepseek-ai/deepseek-harness · error · Win32Error

${name} failed (Win32 ${win32Code}): ${detail ?? errorText(a

Error message

${name} failed (Win32 ${win32Code}): ${detail ?? errorText(api, win32Code)}

What it means

Error "${name} failed (Win32 ${win32Code}): ${detail ?? errorText(api, win32Code)}" thrown in deepseek-ai/deepseek-harness.

Source

Thrown at packages/sandbox/sandbox-windows-acl/src/ffi.ts:499

  const length = api.getTempPathW(buffer.length / 2, buffer)
  if (length === 0) throwLastError(api, 'GetTempPathW')
  if (length > buffer.length / 2) {
    throw new Win32Error('GetTempPathW', abi.ERROR_INSUFFICIENT_BUFFER, `required ${length} chars exceed the ${buffer.length / 2}-char buffer; nothing was written`)
  }
  return buffer.subarray(0, length * 2).toString('utf16le')
}

/**
 * Throw a Win32Error for a BOOL-style API failure. MUST be called immediately
 * after the failed call so GetLastError is not clobbered by other Win32 calls.
 * @param api - the binding table.
 * @param name - the failed API's name for the error message.
 * @param detail - optional detail overriding the formatted system message.
 * @returns never — always throws.
 */
export function throwLastError(api: Win32Bindings, name: string, detail?: string): never {
  const win32Code = api.getLastError()
  throw new Win32Error(name, win32Code, detail ?? errorText(api, win32Code))
}

/**
 * Throw a Win32Error for an HRESULT-style API return value (the value IS the error code).
 * @param api - the binding table.
 * @param name - the failed API's name for the error message.
 * @param win32Code - the API's returned error code.
 * @param detail - optional detail overriding the formatted system message.
 * @returns never — always throws.
 */
export function throwWin32(api: Win32Bindings, name: string, win32Code: number, detail?: string): never {
  throw new Win32Error(name, win32Code, detail ?? errorText(api, win32Code))
}

View on GitHub (pinned to b150a551b8)

Solutions

1. Check the Win32 error code against the API documentation and fix the invalid argument or state that caused the call to fail.
2. Call GetLastError/FormatMessage for the code and address the reported condition before retrying.

When it happens

Trigger: Thrown at packages/sandbox/sandbox-windows-acl/src/ffi.ts:499 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/8456cdfc1a608d49. Report an issue: GitHub.