How to change WAB config.json for an app

JoeMinicucci

Im building a Dojo widget in WebAppBuilder using a settings page to initially set the state of the config.json object's properties. The settings page works and the widget opens. Now I changed my config.json from one state to another:

From:

{
    "id": "6c821ced4fc34a29b5b3bb98c9e05db2",
    "cssMapping": {
        "InputField": "inputField"
    },
    "hierarchyLevels": [],
    "servicePath": ""
}

to:

{
    "id": "6c821ced4fc34a29b5b3bb98c9e05db2",
    "cssMapping": {
        "InputField": "inputField"
    },
    "hierarchyLevels": []
}

I only omitted service path. This created major problems for me. Now after initializing the app I receive a very obscure stack trace:

init.js:113 Error: uniqName_6 template:config.serviceUrl(…) "Error: uniqName_6 template:config.serviceUrl