Extension issue

[ricci11]

• Issue Type: Bug
• Extension Name: python
• Extension Version: 0.2.3
• OS Version: Windows_NT x64 10.0.18363
• VSCode version: 1.54.2

{
    "messages": [
        {
            "type": 3,
            "message": "'configuration.jsonValidation.url' must be an absolute URL or start with './'  to reference schemas located in the extension.",
            "extensionId": {
                "value": "tht13.python",
                "_lower": "tht13.python"
            },
            "extensionPointId": "jsonValidation"
        }
    ],
    "activationTimes": {
        "codeLoadingTime": 1247,
        "activateCallTime": 19,
        "activateResolvedTime": 21,
        "activationReason": {
            "startup": false,
            "extensionId": {
                "value": "tht13.python",
                "_lower": "tht13.python"
            },
            "activationEvent": "onLanguage:python"
        }
    },
    "runtimeErrors": [
        {
            "name": "Error",
            "message": "Channel closed"
        },
        {
            "name": "Error",
            "message": "Channel closed"
        }
    ]
}