Help fixing localisation for en

ERROR ITMS-90858: "Missing messages file. Safari web extension bundle Pocari/Contents/PlugIns/Pocari.Extension.appex is missing the messages.json file for the en locale."

I have this extension that builds and run as expected, but trying to upload it to Apple I get the above error.

The messages.json is there for "en" in my locale folder but I must be missing a reference somewhere.

I am not trying to build for anything other than English for now.

To try to resolve this I have added localisations array with item 0 as English.

Where else do I need to look?
I received this message in my email, but still have not been able to resolve it:

ITMS-90862: Invalid messages file - The messages.json validation failed for locale en in the Safari web extension bundle Pocari.app/Contents/PlugIns/Pocari Extension.appex. The name field must be present, of string type, and 40 or fewer characters long.
ITMS-90862: Invalid messages file - The messages.json validation failed for locale en in the Safari web extension bundle Pocari.app/Contents/PlugIns/Pocari Extension.appex. The description field must be present, of string type, and 112 or fewer characters long.

My messages.json looks like this:
Code Block
{
"fullName": {
"message": "Pocari Safari Extension",
"description": "Name of the extension."
},
"Name": {
"message": "Pocari Safari Extension",
"description": "Name of the extension."
},
"Description": {
"message": "Pocari Safari Extension",
"description": "Description of the extension."

Is it normal for this to be random?

As in, I was able to upload my extension, and then received an email saying I was missing an icon size. Easy to fix. When I go to upload it again, it is once again complaining about the missing messages.json.
Can you upload a copy of your manifest.json file so we can see how those keys are referenced?
here is the beginning of my manifest.json

Code Block
"name": "__MSG_fullName__",
  "short_name": "Pocari",
  "version": "2.0.7",
  "default_locale": "en",
  "description": "__MSG_Description__",

We found and fixed an issue related to this on our end. Can you try submitting your extension again?
Hey, I'm having a similar issue. Wrote about it here:
https://developer.apple.com/forums/thread/676436

I can't distribute an app with the same ITMS-90862 error, but can't figure out what's causing it.
Any help, please?

Thanks
Help fixing localisation for en
 
 
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