Fix chrome extension problem

Problem

Sometime you want to install an extensions not from chrome store, but dragging it into the chrome://extensions will get you this message:

Solution

Find your extension by id from this folder on macOS:

/Users/username/Library/Application Support/Google/Chrome/Default/Extensions

Windows:

C:\Users\username\AppData\Local\Google\Chrome\User Data\Default\Extensions

And then use Load Unpacked to locate the exentison and then enjoy!

Note: you might need to enable Developer mode in chrome://extension if not enabled already.