Encountering a problem with Chrome Extension localization upon installation - receiving an error message claiming default locale was not specified, despite having

Error Message: "The package has been deemed invalid due to the following reason: 'Localization was utilized, however default_locale was not specified in the manifest.'

Issue: I have developed a customized extension and defined a default locale, but Chrome is refusing to allow me to include it in the extension bar, displaying the error message mentioned above. I have also ensured that the _locales folder is present in my directory as required. Could this problem be related to the folder or its location?

Manifesto:

{
    "name": "NAMENAMENAMENAME",
    "short_name": "xxx",
    "version": "0.0.3",
    "manifest_version": 2,
    "description": "This performs some specific function.",
        "browser_action": {
            "default_icon": {
            "16": "icons/yokel16.jpg",
            "48": "icons/yokel48.jpg",
            "default_title": "CCJ",
            "default_popup": "popup.html"
            }
        },
   "icons": {
       "16": "icons/yokel16.jpg",
       "19": "icons/yokel19.jpg",
       "48": "icons/yokel48.jpg",
       "128": "icons/yokel128.jpg"
       },
   "default_locale": "en",
       "background": {
           "page": "popup.js",
           "persistent": false
        },
  "permissions": [
     "cookies",
     "history",
     "tabs",
     "{{some URL}}"
     ]
}
javascriptjsongoogle-chromegoogle-chrome-extensionmanifest

Answer №1

Your manifest is showing signs of being invalid as a whole: the "browser_action" keys are bleeding into the "default_icon" section.

This could confuse Chrome and trigger an inaccurate error message (pointing out the absence of default_locale before mentioning any issues with the manifest structure).

Your current setup:

    "browser_action": {
        "default_icon": {
        "16": "icons/yokel16.jpg",
        "48": "icons/yokel48.jpg",
        "default_title": "CCJ",
        "default_popup": "popup.html"
        }
    },

The correct format (include proper icon sizes that align with Chrome's requirements):

    "browser_action": {
        "default_icon": {
            "19": "icons/yokel48.jpg",
            "38": "icons/yokel48.jpg"
        },
        "default_title": "CCJ",
        "default_popup": "popup.html"
    },

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