VM472:1 thirdScriptError 

 sdk uncaught third Error 

 page is not defined 

 ReferenceError: page is not defined

    at http://127.0.0.1:37499/appservice/pages/index/index.js:3:1

    at require (http://127.0.0.1:37499/appservice/__dev__/WAService.js:1:716549)

    at <anonymous>:18:7

    at HTMLScriptElement.scriptLoaded (http://127.0.0.1:37499/appservice/appservice?t=1543897230013:1206:23)