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Kenil Vasani
Kenil Vasani

Kenil Vasani

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Asked: 2020-12-19T21:58:48+00:00

How to fix ‘Unchecked runtime.lastError: Could not establish connection. Receiving end does not exist.’

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I have the following error in the Chrome Dev Tools console on every page-load of my Node/Express/React application:

Unchecked runtime.lastError: Could not establish connection. Receiving end does not exist

This error makes a reference to localhost/:1. When I hover over this, it shows http://localhost:3000/, the address I’m viewing the app at in the browser.

Anyone have an idea what is going on? Most of the other threads I’ve found that bring up this error seem to be related to someone trying to develop a Chrome Extension, and even then they tend to have very few responses.

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    1. Kenil Vasani

      Kenil Vasani

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      I’d been getting the exact same error (except my app has no back-end and React front-end), and I discovered that it wasn’t coming from my app, it was actually coming from the “Video Speed Controller” Chrome extension. If you aren’t using that extension, try disabling all of your extensions and then turning them back on one-by-one?

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