affaan-m/ECC · error · Error

Nasiko install directory has no resolvable filesystem ancest

Error message

Nasiko install directory has no resolvable filesystem ancestor.

What it means

validateInstallDirectory guard: the ancestor walk up from the (possibly nonexistent) install directory reached the filesystem root without finding an existing directory to resolve against, so the path cannot be canonicalized safely.

Source

Thrown at scripts/lib/nasiko-release.js:149

}

function defaultInstallDirectory(normalized, environment = process.env, homeDirectory = os.homedir()) {
  if (normalized.os === 'windows') {
    if (!environment.LOCALAPPDATA) throw new Error('LOCALAPPDATA is required on Windows.');
    return path.join(environment.LOCALAPPDATA, 'nasiko', 'bin');
  }
  return path.join(homeDirectory, '.local', 'bin');
}

function validateInstallDirectory(directory) {
  if (typeof directory !== 'string' || directory.includes('\0') || !path.isAbsolute(directory)) throw new Error('Nasiko install directory must be an absolute path.');
  if (/^(?:\\\\|\\\\\?\\|\\\\\.\\)/.test(directory)) throw new Error('Nasiko install directory must be on a local filesystem.');
  const resolved = path.resolve(directory);
  if (resolved === path.parse(resolved).root) throw new Error('Nasiko cannot install directly into a filesystem root.');
  let ancestor = resolved;
  while (!fs.existsSync(ancestor)) {
    const parent = path.dirname(ancestor);
    if (parent === ancestor) throw new Error('Nasiko install directory has no resolvable filesystem ancestor.');
    ancestor = parent;
  }
  const canonical = fs.realpathSync(ancestor);
  return path.join(canonical, path.relative(ancestor, resolved));
}

function assertPrivateInstallDirectory(directory) {
  const stats = fs.lstatSync(directory);
  if (!stats.isDirectory() || stats.isSymbolicLink()) throw new Error('Nasiko install directory must be a real directory, not a symlink.');
  if (process.platform !== 'win32') {
    if (typeof process.getuid === 'function' && stats.uid !== process.getuid()) throw new Error('Nasiko install directory must be owned by the current user.');
    if ((stats.mode & 0o022) !== 0) throw new Error('Nasiko install directory must not be group- or world-writable.');
  }
}

function metadataPathFor(executable) { return path.join(path.dirname(executable), METADATA_FILENAME); }

function readBoundedRegularFile(filePath, maximumBytes) {

View on GitHub (pinned to 06c5e118c4)

Solutions

1. Provide a value that satisfies the validation: Nasiko install directory has no resolvable filesystem ancestor.
2. Check the calling command or configuration for the reported field and correct it, then retry.
3. Run the command with --help to review the expected input shape and allowed values.

Example fix

Correct the invalid input so that the following holds: Nasiko install directory has no resolvable filesystem ancestor.

When it happens

Trigger: Thrown at scripts/lib/nasiko-release.js:149 when the library encounters an invalid state.

Common situations: Raised when input validation fails because: Nasiko install directory has no resolvable filesystem ancestor.. Typically caused by a missing, malformed, or out-of-range argument or configuration value.

AI-assisted analysis of affaan-m/ECC@06c5e118c4 (2026-08-18). Data as JSON: /api/errors/843c96b0e19364b6. Report an issue: GitHub.