Unable to reference a Queue in the app

I am trying to build an App in the UiPath App Studio.

I am done with the Ui design.

Now I want to reference a queue(name : GHCM_0009_Monthly_Queue) in the app.

I have created my queue in the tenant:


Back in the App Studio, after clicking on “Add Control”, I selected my tenant, out came the “Add Queue” window.
At the “Add Queue” window, I can find the queue that is configured with a “Specific Data JSON Schema” file.

But my problem is that the Add button is unclickable as shown in the pricture below:


This is my json schema file that I uploaded during creation:

{
    "definitions": {},
    "$schema": "http://json-schema.org/draft-07/schema#",
    "$id": "http://example.com/root.json",
    "type": "object",
    "title": "The Root Schema",
    "required": [
        "name"
    ],
    "properties": {
        "Month": {
            "type": "string",
            "enum": [ "January", "February", "March","April", "May", "June","July", "August", "September","October", "November","December" ]
        },
        "Year": {
            "type": "string"
        }
        }
    }

Kindly assist me as to why I can’t add my queue in App Studio. Thanks.

Check below thread if that helps