how to migrate from V2 to V3 manifest

[snsnsjsn]

Hi, there is an error when drop the zip to install

Manifest version 2 is deprecated, and support will be removed in 2024. See https://developer.chrome.com/docs/extensions/develop/migrate/mv2-deprecation-timeline for details.

"key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAr8fZFNIGmHZTPlt5duNIeLKUdIEDD7e4+jEcBvm0g30e9i/xDKKCou8atTbJK+jDdO3o8M2ySL9BH8F9F5e67zSY66XHME6H7eiwlGpOCt+izOKTQiKwLCehicJckD/66RxRNda7Ybw0Gq8Nz2KzaB6W+uypf0B1lYtv651owhK6Dnvb2LBLpJRWp3bPqJC22no1VFbKfsrLHM6Gfgd4czKZ5GM5zyDK7YKpflCGjxXjC2/H4TsuVbaSiCEuFaguYXE/9NjSE58w9F2ThVi/0F65o4AHdEazEeY/EDXFRag1+FphQuKVC2YFia0VC6OOA2nYai3q/BrxVpOjj6rdOwIDAQAB", "manifest_version": 2, "name": "Booklight", "permissions": [ "bookmarks", "tabs", "storage", "unlimitedStorage", "http://fonts.gstatic.com/", "https://fonts.gstatic.com/" ], "update_url": "https://clients2.google.com/service/update2/crx", "version": "2.2.2",

How could some one solve this