paperclipai/paperclip · error · Error

Invalid zip archive: duplicate entry path "${normalizedPath}

Error message

Invalid zip archive: duplicate entry path "${normalizedPath}".

What it means

Duplicate-path guard in readZipArchive: after stripping the shared archive root, two entries normalize to the same relative path. Since entries are collected into a Record keyed by path, a duplicate would silently overwrite earlier content (a classic zip-slip/confusion vector), so the import aborts instead.

Source

Thrown at packages/shared/src/portability-zip.ts:305

  const eocdOffset = findEndOfCentralDirectoryOffset(bytes);
  if (eocdOffset === -1) {
    throw new Error("Invalid zip archive: missing end-of-central-directory record.");
  }
  validateCentralDirectory(bytes, eocdOffset, localHeaderCount);

  const rootPath = sharedArchiveRoot(entries.map((entry) => entry.path));
  const files: Record<string, CompanyPortabilityFileEntry> = {};
  for (const entry of entries) {
    const normalizedPath =
      rootPath && entry.path.startsWith(`${rootPath}/`)
        ? entry.path.slice(rootPath.length + 1)
        : entry.path;
    if (!normalizedPath) continue;
    // Two entries that normalize to the same path (e.g. `a/b` and `a//b`) make
    // the package ambiguous; reject it rather than silently letting the later
    // entry's contents win over the earlier one.
    if (Object.prototype.hasOwnProperty.call(files, normalizedPath)) {
      throw new Error(`Invalid zip archive: duplicate entry path "${normalizedPath}".`);
    }
    files[normalizedPath] = entry.body;
  }

  return { rootPath, files };
}

View on GitHub (pinned to 120ae5428f)

Solutions

1. Remove duplicate entry paths from the archive before uploading.

When it happens

Trigger: Thrown at packages/shared/src/portability-zip.ts:305 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of paperclipai/paperclip@120ae5428f (2026-08-18). Data as JSON: /api/errors/7b897c24681b0606. Report an issue: GitHub.