openclaw - 💡(How to fix) Fix Windows: Feishu channel exits with ESM loader error 'Received protocol c:' on OpenClaw 2026.4.24 [2 comments, 3 participants]

TL;DR

The issue can be resolved by normalizing Windows absolute paths to file:// URLs using pathToFileURL(...).href before passing them to the ESM loader.

Guidance

• Verify that the Feishu channel plugin is using the correct path format by checking the code for any instances of import() or loader functions that may be passing raw Windows absolute paths.
• Ensure that any filesystem paths used in module resolution are normalized using pathToFileURL(...).href to convert them to valid file:// URLs.
• Review the OpenClaw documentation to see if there are any specific requirements or recommendations for handling Windows paths in ESM loaders.
• Test the fix by updating the code to use normalized paths and verifying that the Feishu channels initialize correctly.

Example

const path = require('path');
const { fileURLToPath, pathToFileURL } = require('url');

// Assuming 'filePath' is a raw Windows absolute path (e.g. 'C:\...')
const normalizedPath = pathToFileURL(filePath).href;
// Use 'normalizedPath' as the ESM specifier

Notes

The issue seems to be specific to Windows and the use of ESM loaders. The provided log messages indicate that the ESM loader is expecting a file:// URL, but is receiving a raw Windows absolute path instead.

Recommendation

Apply workaround: Normalize Windows absolute paths to file:// URLs using pathToFileURL(...).href to ensure compatibility with the ESM loader. This should resolve the issue without requiring an upgrade to a fixed version.