---
title: "Why do I get 'Changes in file detected' and 'Error: unable to proxy request' error messages while performing file related operations in local debugging using catalyst serve?"
url: https://docs.catalyst.zoho.com/en/faq/cli/cli-serve-hotreload/
description: "This error will occur when you perform file operations using the catalyst serve command. To resolve this problem, use the option --no-watch with catalyst serve …"
last_updated: 2026-11-13T05:00:22Z
service: All Services
type: faq
---

This error will occur when you perform file operations using the `catalyst serve` command. To resolve this problem, use the option `[--no-watch](https://docs.catalyst.zoho.com/en/cli/v1/working-with-functions/functions-shell/#--no-watch)`  with catalyst serve for local debugging while performing any file related operations. The `--no-watch` command disables hot module replacement.