Error while adding "Feed" to the new workplace in the mobile application wizard

Symptoms

An error occurs while adding the "Feed" section to the new workplace in the mobile application wizard.

Solution

1. Add the following code in the schema settings of the "Feed" section grid (UsrMobileSocialMessageGridPageSettingsSupervisorworkplace):

{
    "operation": "insert",
    "name": "e0de54d7-b417-42b1-8081-36337aa344a1",
    "values": {
        "row": 0,
        "content": "Created by",
        "columnName": "CreatedBy",
        "dataValueType": 1,
        "operation": "insert"
    },
    "parentName": "settings",
    "propertyName": "items",
    "index": 1
}

2. Change the Message column proprety ("row") to "1" in the settings above. 

"row": 1,