Images Missing In Teams Admin Portal and Cant Upload new App Package

Prasad_Das-MSFT 

Here is the zip file generated by Visual Studio 2002 17.5 Preview 1.0

{
    "$schema": "https://developer.microsoft.com/en-us/json-schemas/teams/v1.14/MicrosoftTeams.schema.json",
    "manifestVersion": "1.14",
    "isFullScreen": true,
    "version": "2.5.1",
    "id": "c38a0046-3419-419c-81d7-366da0a1afb5",
    "packageName": "com.microsoft.teams.extension",
    "developer": {
        "name": "PartnerComm, Inc.",
        "websiteUrl": "https://teamstab.partnercomm.net",
        "privacyUrl": "https://teamstab.partnercomm.net/termofuse",
        "termsOfUseUrl": "https://teamstab.partnercomm.net/privacy"
    },
    "icons": {
        "color": "color.png",
        "outline": "outline.png"
    },
    "name": {
        "short": "Status",
        "full": "Partner Employee Presence"
    },
    "description": {
        "short": "Employee Status",
        "full": "Show status of employees in Teams"
    },
    "accentColor": "#FFFFFF",
    "staticTabs": [
        {
            "entityId": "index0",
            "name": "Status",
            "contentUrl": "https://teamstab.partnercomm.net/tab",
            "websiteUrl": "https://teamstab.partnercomm.net/tab",
            "scopes": [
                "personal"
            ]
        }
    ],
    "configurableTabs": [],
    "validDomains": [
        "teamstab.partnercomm.net"
    ],
    "webApplicationInfo": {
        "id": "84a5419f-f93b-4c91-9f82-e7d32d537c2d",
        "resource": "api://teamstab.partnercomm.net/84a5419f-f93b-4c91-9f82-e7d32d537c2d"
    }
}

This editor would not let me upload a zip file. Thanks